EP0300577A1 - Dampfbad mit System zur Dampferzeugung, das im Kabinendach angebracht ist - Google Patents

Dampfbad mit System zur Dampferzeugung, das im Kabinendach angebracht ist Download PDF

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Publication number
EP0300577A1
EP0300577A1 EP88201528A EP88201528A EP0300577A1 EP 0300577 A1 EP0300577 A1 EP 0300577A1 EP 88201528 A EP88201528 A EP 88201528A EP 88201528 A EP88201528 A EP 88201528A EP 0300577 A1 EP0300577 A1 EP 0300577A1
Authority
EP
European Patent Office
Prior art keywords
steam
cabinet
generating device
water
boiler
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP88201528A
Other languages
English (en)
French (fr)
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EP0300577B1 (de
Inventor
Virgilio Guzzini
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Teuco Guzzini SpA
Original Assignee
Teuco Guzzini SpA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Teuco Guzzini SpA filed Critical Teuco Guzzini SpA
Publication of EP0300577A1 publication Critical patent/EP0300577A1/de
Application granted granted Critical
Publication of EP0300577B1 publication Critical patent/EP0300577B1/de
Expired legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61H—PHYSICAL THERAPY APPARATUS, e.g. DEVICES FOR LOCATING OR STIMULATING REFLEX POINTS IN THE BODY; ARTIFICIAL RESPIRATION; MASSAGE; BATHING DEVICES FOR SPECIAL THERAPEUTIC OR HYGIENIC PURPOSES OR SPECIFIC PARTS OF THE BODY
    • A61H33/00—Bathing devices for special therapeutic or hygienic purposes
    • A61H33/06—Artificial hot-air or cold-air baths; Steam or gas baths or douches, e.g. sauna or Finnish baths
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61H—PHYSICAL THERAPY APPARATUS, e.g. DEVICES FOR LOCATING OR STIMULATING REFLEX POINTS IN THE BODY; ARTIFICIAL RESPIRATION; MASSAGE; BATHING DEVICES FOR SPECIAL THERAPEUTIC OR HYGIENIC PURPOSES OR SPECIFIC PARTS OF THE BODY
    • A61H33/00—Bathing devices for special therapeutic or hygienic purposes
    • A61H33/06—Artificial hot-air or cold-air baths; Steam or gas baths or douches, e.g. sauna or Finnish baths
    • A61H33/063—Heaters specifically designed therefor
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61H—PHYSICAL THERAPY APPARATUS, e.g. DEVICES FOR LOCATING OR STIMULATING REFLEX POINTS IN THE BODY; ARTIFICIAL RESPIRATION; MASSAGE; BATHING DEVICES FOR SPECIAL THERAPEUTIC OR HYGIENIC PURPOSES OR SPECIFIC PARTS OF THE BODY
    • A61H33/00—Bathing devices for special therapeutic or hygienic purposes
    • A61H33/06—Artificial hot-air or cold-air baths; Steam or gas baths or douches, e.g. sauna or Finnish baths
    • A61H33/10—Devices on tubs for steam baths

Definitions

  • the location of the steam generator separate and, frequently, a considerable distance from the cabinet means that the lines conveying the steam to the cabinet run a course that facilitates heat dispersion and thus jeopardizes the performance of the sauna as a whole.
  • the overall object of the present invention is to obviate the above-mentioned difficulties by embodying a steam generator which, complete with its control devices, can be installed directly above a steam bath cabinet, thus minimizing the number of electrical and hydraulic linkages external to the whole and necessary for its functioning, and also minimizing the lenght run by the electrical and hydraulic linkages between steam generator and cabinet, in this way embodying a steam bath cabinet installation which is both compact and without other visible elements.
  • the present invention embodies a steam generator of the type comprising an electric steam boiler for steam generation and a pipe connecting the said boiler to steam inlet ports within a steam bath cabinet, wherein the whole is completely contained in a generally box-shaped container the dimensions of the base of which are the same as those of the upper portion of the said cabinet onto the top of which the said container is applied, forming with it a single whole.
  • a sauna or steam bath cabinet installation embodied in accordance with the innovative principles of the invetion, comprises a generally box-like container 10 which holds all the control and steam generation devices and which is realized, for example, with fibreglass-reinforced acrylic material and is disposed on the top of a cabinet (shower cubicle) into which the steam produced by the said generating devices is conveyed.
  • the generally box-like container 10 has base dimensions that cover, with a perfect closure, the upper part of the cabinet.
  • the said system consists of an electric steam boiler 12 featuring armoured electrical resistances 13 and connected by means of a pipe 14 to water-purification cartridges 15 which are connected in series (e.g. three in number: two being ion-exchange resin cartridges for water decalcification and the third containing activated charcoal for water dechlorination).
  • a pipe 16 leads to a container 17 for salt (for regenerating the resins in the ion-exchange cartridges) and from this to a supply solenoid 18 which by means of a pipe 19 supplies the above-described system with cold water from the mains.
  • a pipe 20 from the boiler 12 connects the boiler to a drain-trap 21 which is in turn connected by a pipe 22 to a drain 23 and, by a pipe 24, to a second discharge or drain solenoid 25, also connected to the pipe 19.
  • An air intake 26 is located intermediately between the drain-trap 21 and the drain 23.
  • cartridges 15 and the drain-trap 21 are supplemental components of the steam generation and control system proper, they are not incorporated in the container 10; given their small bulk, they can readily be hidden from view by replacing them for example in a hollow space between the back wall of the steam bath cabinet and the wall abutting this; such components are in any case the only ones external to the container 10 and, moreover, in any embodiment different from that here given as an exemplification of application of the innovative principles of the invention, they can either not feature at all or else be replaced by functionally equivalent devices placed within the container 10.
  • a tube 27 conveys the steam generated in the boiler 12 to a delivery port 28 communicating with the interior of the cabinet 11.
  • a system for recirculating the atmosphere in the cabinet 11 consisting of a duct 29 containing a fan 30 and series-connected electrical resistances 31.
  • the duct 29 communicates with the interior of the cabinet 11: the first end (closest to the fan) communicates directly therewith and the second end communicates with the interior of the cabinet proximally to the steam delivery port 28.
  • the manner of operating of the entire installation in question is controlled by an electronic control unit 32 operated by a device 33 inside the cabinet 11.
  • the unit 32 and the operating device 33 are fed, through an electric switch 34 controlled by a mechanical pushbutton 35 located on the ceiling of the steam bath cabinet, through the intermediary of an electrical connection 36 to an external electric line.
  • the unit 32 and the corresponding operating device 33 can be realized in any manner and can operate with any desired cycle, compatibly with the operational requirements of the steam generator system.
  • the manner of operating of the steam bath cabinet installation will for the sake of convenience be referred to a specific embodiment on an electronic control unit and of a corresponding operating device embodied incorporating a microprocessor system to the programmed special functions of which reference will be made, though this is not limiting as regards the invention overall or as regards the scope of its claims and should be understood as exemplifying a possible practical embodiment.
  • the armoured electrical resistances 13 are activated by the electronic control unit 32.
  • the electronic control unit 32 de-energizes the supply solenoid 18, so interrupting the mains water supply to the boiler.
  • the water thus present in the boiler is heated by the armoured resistances 13 and, after a certain time (approximately 6 to 7 minutes), steam begins to form in the boiler 12. This steam, flowing through the pipe 27, is introduced through the delivery port 28 into the cabinet 11.
  • the fan 30, activated by the electronic control unit 42 aspirates the mixture of steam and air in the cabinet and conveys it to the inside of the duct 29 where it is heated on coming into contact with the electrical resistances 31 and is then delivered once again to the interior of the steam bath cabinet from the other end of the duct proximal to the delivery port 28 and thus mixes with the steam coming from the boiler 12.
  • air/steam mixture similar to that diagrammatically illustrated in Figure 2, which shows how the said forced-­circulation system enables the steam to pervade the entire interior of the cabinet in an evenly distributed manner.
  • a sauna cycle with steam generation terminates either when the water in the boiler reaches the minimum level (detected by the first sensor of suitable type) or when the electronic control unit 32 is informed of the depression of a key marked STOP on the keyboard of the operating device 33.
  • the electronic control unit 32 then deactivates all the heating resistances in the system and starts-up a system rinsing cycle.
  • This cycle consists of activation of the drain solenoid 25 which permits the mains water from the pipe 19 to reach the drain-trap 21 through the pipe 24.
  • the drain-trap 21 is composed (as is shown in Figure 1 and, more clarly, in Figure 3, 4 and 5) of three pipes 20, 22, 24 interconnected by a T-joint and bent upwards so as to be parallel and vertical for a certain section before again bending so as to reach, as already stated, the following: the pipe 20 reaches the boiler 12; the pipe 24 the discharge or drain solenoid 25; the pipe 22, by its downward bend, the drain 23.
  • Figure 3 which illustrates the drain-trap in the unprimed condition when the sauna or steam bath cabinet installation is inoperative (switched off), a condition of equilibrium is obtained in the three pipes forming the drain-trap, which remain filled with water up to the level indicated by A-A.
  • Figure 3 also illustrates the condition existing when the steam bath cabinet installation is in operation, when the pressure set-up by the steam in the boiler is transmitted through the pipe 20 to the drain-trap and the water-­levels in the drain-trap are modified, reaching the levels indicated by B-B.
  • the condition illustrated in Figure 4 subsists: flowing through the pipe 24, the water reaches the drain-trap 21 and branches off into the pipes 20 and 22, in this way reaching, through the pipe 20, the boiler 12 which it rinses; then, through the pipe 22, it reaches the discharge system at 25, priming the drain-trap 21.
  • the discharge or drain solenoid 25 remains activated for sufficiently long to ensure that the priming takes place (for example 10 seconds) and then the electronic control unit 32 deactivates it. When this occurs the drain-trap system 25 enters the water discharge phase as illustrated in Figure 5.
  • the pipe 24 is closed at its upper end by the solenoid 25 and is therefore extraneous to the functioning of the drain trap while the water in the pipes 20 and 22 flows (as a result also of the air intake 26 in the descending section of the pipe 22) to the drain 23, at the same time drawing off the water present in the boiler 12 and so emptying it.
  • the system is in this way rinsed out and emptied of all residual water in an effective and completely automatic manner.
  • the system is therefore at once ready for providing another steam bath cycle or else for total deactivation, i.e. by depression of the pushbutton 35 on the ceiling of the cabinet so as completely to cut-out the power feed to the steam bath electrical system. This is done through the agency of the switch 34.
  • the duct 29 containing the fan 30 and the electrical resistances provides other useful and convenient possibilities: it is for example thereby possible to activate the fan and the resistances separately from the steam generation system and so cause warm air to circulate in the cabinet, which is useful for pre-heating the cabinet pending the start of steam generation (i.e. while the water in the boiler 12 is being heated), or, on completion of the steam bath cycle, to dry the bather and/or the interior of the cabinet.
  • the microprocessor operated electronic control system makes readily available an entire series of functions additional to the basic functions for steam bath operation simply by storing in the memory of the system, during manufacture, the appropriate programme. Such additional functions augment practicality and facility of use.
  • the type of climate selected and the instantaneous temperature inside the steam bath cabinet (measured by a suitable sensor located in the cabinet and connected to the electronic control unit 32).
  • the container 17 requires to be periodically topped up with salt to regenerate the resins in the cartridges 15.
  • a low salt level in the container 17 can be automatically indicated on the alphanumeric display by means of a suitable phrase that appears after a certain number of steam bath cycles. This prevents personnel oversights and ensures timely salt refurnishment.
  • control unit employing a microprocessor permits, at low cost, a wide range of additional functions which the bather can make use of without difficulty.
  • additional functions previously described, is the reading of the internal temperature of the steam bath cabinet.
  • a container is available immediately above the cabinet makes it possible to add, readily and with a minimum of connections, various other devices that can be disposed in the space within the said container that is not occupied by the steam generation system and its control devices.
  • a radio receiver system controllable by the microprocessor system capable, for instance, of memorizing a certain number of radio channels through the agency of the previously mentioned operating device 33 with keyboard; the sound diffusion can be readily disposed in the ceiling of the steam bath cabinet.
  • Another possible device is a lamp 37 for lighting the interior of the steam bath cabinet that can for instance be fed through the intermediary of the switch 34 and will also seve as a clearly visible indication that the steam bath cabinet installation electrical system is on.

Landscapes

  • Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Epidemiology (AREA)
  • Pain & Pain Management (AREA)
  • Physical Education & Sports Medicine (AREA)
  • Rehabilitation Therapy (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Veterinary Medicine (AREA)
  • Devices For Medical Bathing And Washing (AREA)
EP19880201528 1987-07-24 1988-07-15 Dampfbad mit System zur Dampferzeugung, das im Kabinendach angebracht ist Expired EP0300577B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT2207887U IT211945Z2 (it) 1987-07-24 1987-07-24 Sauna di vapore con un impianto vaporizzatore posta in una cupola applicata superiormente alla cabina.
IT2207887U 1987-07-24

Publications (2)

Publication Number Publication Date
EP0300577A1 true EP0300577A1 (de) 1989-01-25
EP0300577B1 EP0300577B1 (de) 1992-03-11

Family

ID=11191152

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19880201528 Expired EP0300577B1 (de) 1987-07-24 1988-07-15 Dampfbad mit System zur Dampferzeugung, das im Kabinendach angebracht ist

Country Status (6)

Country Link
EP (1) EP0300577B1 (de)
JP (1) JP2571829B2 (de)
AU (1) AU610908B2 (de)
DE (1) DE3869005D1 (de)
ES (1) ES2030157T3 (de)
IT (1) IT211945Z2 (de)

Cited By (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5069207A (en) * 1990-07-23 1991-12-03 Lin Shin Hsiung Physiotherapy healthy device
WO1993009752A1 (en) * 1991-11-22 1993-05-27 Nordic Saunas Limited Climate chamber
US5224224A (en) * 1991-01-11 1993-07-06 Kohler Co. Foot bathing fixture
US5255399A (en) * 1990-12-31 1993-10-26 Park Hun C Far infrared rays sauna bath assembly
US5289599A (en) * 1991-01-11 1994-03-01 Kohler Co. Foot bathing fixture
EP0534918A3 (de) * 1991-09-27 1994-03-30 Filipponi A & C Sea Snc
ES2083310A1 (es) * 1991-04-29 1996-04-01 Millaka S A Perfeccionamientos introducidos en aparatos generadores de vapor, para saunas.
US5628073A (en) * 1995-07-27 1997-05-13 Watkins Manufacturing Corp. Sauna
EP0747032A3 (de) * 1995-05-11 1997-12-29 Kabushiki Kaisha Keibi Seisakusho Tragbare Sauna
EP0779067A3 (de) * 1995-12-12 1998-03-11 Paul Haslauer Warmluft-Dampfbad-Kabine
EP0880960A3 (de) * 1997-05-26 1999-11-17 Jacuzzi Europe Spa Heissluft- und Dampferzeuger zur Verwendung in Duschkabinen oder dergleichen
US5987662A (en) * 1997-04-02 1999-11-23 Kiyokawa; Shin Sauna device
WO2000044331A1 (de) * 1999-01-28 2000-08-03 Vitasalin Ag Ganzkörper-nebelbadvorrichtung und verfahren zum verabreichen eines ganzkörper-nebelbades
EP1219281A1 (de) * 2000-12-19 2002-07-03 Hermann Kelmayr Duschkabine
US6681417B2 (en) * 2002-04-04 2004-01-27 Gestion Ultra International Inc. Therapeutic shower enclosure
EP1484044A3 (de) * 2003-06-05 2005-01-12 Hansgrohe AG Vorrichtung zum Dampfaustritt von einer Dampferzeugung ins Innere einer Dampfkabine
EP1561447A1 (de) * 2004-02-05 2005-08-10 Hansgrohe AG Austrittseinrichtung für Dampfkabinen
US6965097B2 (en) * 2003-03-26 2005-11-15 Seung Woo Lee Control device for an infrared ray sauna facility
GB2413955A (en) * 2004-05-13 2005-11-16 John Mcdermott Shower and dryer
CN102670394A (zh) * 2012-05-07 2012-09-19 林智勇 智能关节炎熏疗仪
CN102755243A (zh) * 2012-06-27 2012-10-31 林智勇 智能关节炎熏疗罩
US9283143B2 (en) 2011-12-08 2016-03-15 Nikita Krasilnikov Mobile sauna

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4891489B2 (ja) * 2001-05-16 2012-03-07 株式会社ハーマン ミスト装置
CN102755247B (zh) * 2012-07-06 2014-04-30 林智勇 智能熏蒸罩调温装置
KR102360834B1 (ko) * 2015-02-02 2022-02-10 주식회사 콜러노비타 스팀 발생기

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0059407A1 (de) * 1981-02-24 1982-09-08 Günter Schüssler Sprudelbad mit integrierten Badewasser-Überlauf- und Niveau-Ausgleichsbehältern und Wasseraufbereitungskammern und selbsttätiger oder zwangsweiser Filtermedium-Rückspülung
DE3319232A1 (de) * 1983-05-27 1984-11-29 Willi 5208 Eitorf Schiefelbusch Vorrichtung zur erzeugung von wasserdampf
DE3511436A1 (de) * 1985-03-29 1986-10-02 Wella Ag, 6100 Darmstadt System zur befeuchtung der luft in einer sauna
DE3615194A1 (de) * 1985-05-06 1986-11-06 Sven-Olof Halmstad Janson Vorrichtung fuer dampfbaeder
DE8631342U1 (de) * 1986-11-22 1987-03-05 Hoesch Metall + Kunststoffwerk GmbH & Co, 52372 Kreuzau Fernbedienungselement für den Naßbereich
WO1987003194A1 (en) * 1985-12-02 1987-06-04 Yli Kovero Risto T A method of heating a sauna and a sauna stove
DE8711541U1 (de) * 1987-08-26 1987-11-05 EOS-Werke Günther GmbH, 6349 Driedorf Sauna-Service- und Betriebsstation

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU2075470A (en) * 1970-10-06 1972-04-13 Feil Julius Improved steambath
EP0024714A3 (de) * 1979-08-30 1981-06-03 Portasauna Limited Badevorrichtung

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0059407A1 (de) * 1981-02-24 1982-09-08 Günter Schüssler Sprudelbad mit integrierten Badewasser-Überlauf- und Niveau-Ausgleichsbehältern und Wasseraufbereitungskammern und selbsttätiger oder zwangsweiser Filtermedium-Rückspülung
DE3319232A1 (de) * 1983-05-27 1984-11-29 Willi 5208 Eitorf Schiefelbusch Vorrichtung zur erzeugung von wasserdampf
DE3511436A1 (de) * 1985-03-29 1986-10-02 Wella Ag, 6100 Darmstadt System zur befeuchtung der luft in einer sauna
DE3615194A1 (de) * 1985-05-06 1986-11-06 Sven-Olof Halmstad Janson Vorrichtung fuer dampfbaeder
WO1987003194A1 (en) * 1985-12-02 1987-06-04 Yli Kovero Risto T A method of heating a sauna and a sauna stove
DE8631342U1 (de) * 1986-11-22 1987-03-05 Hoesch Metall + Kunststoffwerk GmbH & Co, 52372 Kreuzau Fernbedienungselement für den Naßbereich
DE8711541U1 (de) * 1987-08-26 1987-11-05 EOS-Werke Günther GmbH, 6349 Driedorf Sauna-Service- und Betriebsstation

Cited By (28)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5069207A (en) * 1990-07-23 1991-12-03 Lin Shin Hsiung Physiotherapy healthy device
US5255399A (en) * 1990-12-31 1993-10-26 Park Hun C Far infrared rays sauna bath assembly
US5289599A (en) * 1991-01-11 1994-03-01 Kohler Co. Foot bathing fixture
US5224224A (en) * 1991-01-11 1993-07-06 Kohler Co. Foot bathing fixture
ES2083310A1 (es) * 1991-04-29 1996-04-01 Millaka S A Perfeccionamientos introducidos en aparatos generadores de vapor, para saunas.
EP0534918A3 (de) * 1991-09-27 1994-03-30 Filipponi A & C Sea Snc
WO1993009752A1 (en) * 1991-11-22 1993-05-27 Nordic Saunas Limited Climate chamber
EP0747032A3 (de) * 1995-05-11 1997-12-29 Kabushiki Kaisha Keibi Seisakusho Tragbare Sauna
US5950254A (en) * 1995-05-11 1999-09-14 Kabushiki Kaisha Keibi Seisakusho Portable sauna
US5628073A (en) * 1995-07-27 1997-05-13 Watkins Manufacturing Corp. Sauna
EP0779067A3 (de) * 1995-12-12 1998-03-11 Paul Haslauer Warmluft-Dampfbad-Kabine
US5987662A (en) * 1997-04-02 1999-11-23 Kiyokawa; Shin Sauna device
EP0880960A3 (de) * 1997-05-26 1999-11-17 Jacuzzi Europe Spa Heissluft- und Dampferzeuger zur Verwendung in Duschkabinen oder dergleichen
US6500197B1 (en) 1999-01-28 2002-12-31 Vitasalin Ag Full-body atomised bath and method for providing a full body atomised bath
WO2000044331A1 (de) * 1999-01-28 2000-08-03 Vitasalin Ag Ganzkörper-nebelbadvorrichtung und verfahren zum verabreichen eines ganzkörper-nebelbades
EP1219281A1 (de) * 2000-12-19 2002-07-03 Hermann Kelmayr Duschkabine
US6681417B2 (en) * 2002-04-04 2004-01-27 Gestion Ultra International Inc. Therapeutic shower enclosure
WO2003084456A3 (en) * 2002-04-04 2004-02-05 Gestion Ultra Internat Inc Therapeutic shower enclosure
EP1719490A3 (de) * 2002-04-04 2006-11-15 Gestion Ultra International Inc. Anordnung für eine obere Wand einer Duschkabine
CN100353929C (zh) * 2002-04-04 2007-12-12 超级治理国际公司 治疗淋浴间
US6965097B2 (en) * 2003-03-26 2005-11-15 Seung Woo Lee Control device for an infrared ray sauna facility
EP1484044A3 (de) * 2003-06-05 2005-01-12 Hansgrohe AG Vorrichtung zum Dampfaustritt von einer Dampferzeugung ins Innere einer Dampfkabine
EP1561447A1 (de) * 2004-02-05 2005-08-10 Hansgrohe AG Austrittseinrichtung für Dampfkabinen
GB2413955A (en) * 2004-05-13 2005-11-16 John Mcdermott Shower and dryer
US9283143B2 (en) 2011-12-08 2016-03-15 Nikita Krasilnikov Mobile sauna
CN102670394A (zh) * 2012-05-07 2012-09-19 林智勇 智能关节炎熏疗仪
CN102755243A (zh) * 2012-06-27 2012-10-31 林智勇 智能关节炎熏疗罩
CN102755243B (zh) * 2012-06-27 2014-03-12 林智勇 智能关节炎熏疗罩

Also Published As

Publication number Publication date
JP2571829B2 (ja) 1997-01-16
JPS6449560A (en) 1989-02-27
IT211945Z2 (it) 1989-05-25
ES2030157T3 (es) 1992-10-16
IT8722078V0 (it) 1987-07-24
AU610908B2 (en) 1991-05-30
DE3869005D1 (en) 1992-04-16
EP0300577B1 (de) 1992-03-11
AU1928088A (en) 1989-01-27

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