WO2000001491A1 - Discharging device for material and fuel - Google Patents
Discharging device for material and fuel Download PDFInfo
- Publication number
- WO2000001491A1 WO2000001491A1 PCT/JP1999/003510 JP9903510W WO0001491A1 WO 2000001491 A1 WO2000001491 A1 WO 2000001491A1 JP 9903510 W JP9903510 W JP 9903510W WO 0001491 A1 WO0001491 A1 WO 0001491A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- nozzle
- liquid
- fuel
- discharging
- pressurizing chamber
- 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.)
- Ceased
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23D—BURNERS
- F23D11/00—Burners using a direct spraying action of liquid droplets or vaporised liquid into the combustion space
- F23D11/34—Burners using a direct spraying action of liquid droplets or vaporised liquid into the combustion space by ultrasonic means
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B1/00—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B17/00—Apparatus for spraying or atomising liquids or other fluent materials, not covered by the preceding groups
- B05B17/04—Apparatus for spraying or atomising liquids or other fluent materials, not covered by the preceding groups operating with special methods
- B05B17/06—Apparatus for spraying or atomising liquids or other fluent materials, not covered by the preceding groups operating with special methods using ultrasonic or other kinds of vibrations
- B05B17/0607—Apparatus for spraying or atomising liquids or other fluent materials, not covered by the preceding groups operating with special methods using ultrasonic or other kinds of vibrations generated by electrical means, e.g. piezoelectric transducers
Definitions
- the present invention relates to a raw material / fuel discharge device used for various machines that operate by discharging a liquid raw material or fuel and various machines that process the liquid by discharging a liquid raw material or fuel.
- the demand for a device for discharging a liquid raw material or a fuel as fine particles has expanded beyond expectation, and there are unique requirements according to the application, and the above-described ink jet ejection device has Is not ready to use.
- the conditions of use are different, and depending on the conditions of use, air bubbles formed by mechanical vibration generated in accordance with the use environment may cause liquid Even if the gas enters the pressurizing chamber of the discharge device and attempts to pressurize the pressurizing chamber, the penetrated bubbles deform and contract according to the pressure to absorb part or all of the pressurized pressure.
- a situation in which the discharge of the target liquid is not performed as expected often occurs, and a problem arises in that a desired effect is not exhibited.
- the present invention can prevent the intrusion of air bubbles into the liquid ejection device in order to prevent liquid ejection failure and ejection failure caused by such intrusion bubbles from the nozzle. It is intended to provide a liquid discharge device (raw material / fuel discharge device) with a structure. Disclosure of the invention
- the present inventors have conducted various studies in view of the above-mentioned situation, and as a result, in order to prevent air bubbles generated by mechanical vibration or the like from entering the pressurized chamber (1), the present inventors have proposed a nozzle as a nozzle.
- a material having the above aspect ratio (LZd) By using a material having the above aspect ratio (LZd), it has been found that bubbles generated by mechanical vibration can be efficiently prevented from entering the pressurizing chamber, and the present invention has been completed. is there.
- a pressurizing means for discharging a liquid a pressurizing chamber (1) for discharging a liquid to be discharged, and a liquid discharging nozzle ( 2)
- FIG. 1 is a side sectional view of one embodiment of a raw material / fuel discharge device according to the present invention.
- FIG. 2 is a side sectional view of another embodiment of the raw material / fuel discharge device according to the present invention.
- FIG. 3 is a side sectional view of another embodiment of the material / fuel discharge device according to the present invention.
- a discharge device for a raw material and a fuel according to the present invention includes a pressurizing means for discharging a liquid, and a pressurizing chamber for discharging the liquid by pressurizing the liquid. And a liquid discharge structure (7) having a discharge nozzle (2) provided at the lower part of the pressurizing chamber, wherein the nozzle has an aspect ratio of 5 or more.
- the aspect ratio (LZd) refers to the ratio of the length of the nozzle to the diameter d of the nozzle.
- the shape of the nozzle according to the present invention is not particularly limited as long as the aspect ratio (L / d) is 5 or more.
- Examples of the nozzle having such an aspect ratio include, for example, a cylinder, a tubular body having a rectangular cross section, and a shape having any one of the above two types.
- those having a small cavity, those formed from a multi-stage taper, and the like can be mentioned.
- the above-described raw material / fuel discharge device may be configured as one unit, and may be configured as a raw material / fuel discharge device having a structure including a plurality to several hundreds of units depending on the use mode.
- the pressurizing chamber (1) and the pressurizing chamber (1) are connected to the discharge liquid supply flow path ( 5), a discharge hole for discharging the liquid material as fine particles through a communication hole connecting the pressure chamber (1) and the nozzle, and a communication hole located at a lower part of the pressure chamber (1).
- a nozzle section (3) having a nozzle (2) formed therein, and a first layer containing a pressurizing chamber (1) and a liquid provided below the first layer.
- a second layer for accommodating the liquid supply flow path (5) for supplying to the pressure chamber (1), and a nozzle portion provided below the second layer
- the pressure chamber (1) and the nozzle (2) communicate with each other through a communication hole.
- a piezoelectric Z electrostrictive film element is usually employed as the pressurizing means for discharging the liquid.
- the piezoelectric / electrostrictive film type element (9) is a well-known member to those skilled in the art.
- the arrangement method for the liquid discharge structure (7) may be a known method.
- the raw material / fuel discharging structure usually formed of three layers uses a ceramic material according to the method described in Japanese Patent Application No. 9-335210, etc. What is necessary is just to manufacture by integrally molding into a predetermined shape and firing this molded body.
- the pressurizing chamber (1) communicates with the nozzle (2) through a communication hole. Further, the pressurizing chamber (1) communicates with the liquid supply flow path (5) through the backflow suppressing fine hole (10).
- the pressurizing chamber (1) can usually take the form of a cylinder, a long cylinder, a rectangular parallelepiped, etc., and its volume may be determined according to the mode of use.
- a piezoelectric Z-electrostrictive film type element (9) as a pressurizing means is installed at the top of the pressurizing chamber (1). You. Lead wires and electrodes (not shown) required for transmitting an electric signal for pressurization are connected to the piezoelectric Z-electrostrictive film element (9).
- the nozzle (2) is formed so as to be housed inside the nozzle portion (3) as the third layer.
- the ratio of the length L of the nozzle to the diameter d of the nozzle is expressed as an aspect ratio (LZ d), at least 5, preferably 1 Must be 0 or more. However, exceeding 15 is not preferable because the diameter of the nozzle is too small, which may hinder production.
- the nozzle may have a cylindrical shape, a tubular body having a rectangular cross section, or a small nozzle (4) for bubble trapping provided near the tip of the cylindrical nozzle. It may have a single-pack structure (8). From the viewpoint of preventing intrusion of bubbles, a device provided with a small cavity (4) for a bubble trap is preferable, and a device having a multi-stage taper structure (8) is more preferable.
- the tip of the small cavity (4) on the side perpendicular to the longitudinal direction of the pressurizing chamber (1) on the pressurizing chamber side It is preferable that the ratio L, ZL 2 of the distance L 2 between the tip and the tip on the trap side and the distance L 2 between the tip on the discharge port side is 5 or more.
- the diameter of the nozzle is gradually increased from the nozzle located on the communication hole side to the nozzle located on the tip side of the discharge outlet, so that air bubbles can be trapped more.
- the number of stages used is at least two, and preferably four. From the viewpoint of manufacturing, the height of each step may be substantially the same as that of each step. Needless to say, the height of each step can be appropriately changed depending on the application.
- FIGS. 1 to 3 are side cross-sectional views of some embodiments of the material / fuel discharge device according to the present invention.
- the liquid discharge structure (7) used in the liquid discharge device shown in FIG. 1 includes a pressurizing chamber (1) provided in the first layer and a second chamber located below the first layer.
- the body is made of, for example, a ceramic material, for example, a partially stabilized zirconia powder and a binder according to the method disclosed in Paragraph Nos. 0101 to 0113 of JP-A-9-335210. It can be produced by molding using a suitable auxiliary such as a solvent or a solvent, and baking this. In this case, it is necessary to determine the length L and the diameter d of the nozzle (2) so that the aspect ratio is at least 5 or more.
- the nozzle may be formed by a general method such as laser processing or mechanical processing such as punching and cutting.
- the liquid discharging structure (7) used in the raw material / fuel discharging device shown in FIG. 2 includes a pressurizing chamber (1) provided in the first layer and a second chamber located below the first layer.
- a liquid supply channel (5) which is provided in two layers and communicates with the pressurizing chamber (1) through a microhole (10) for preventing backflow, a pressurizing chamber (1) and a nozzle ( A molded body having a communication hole for connecting 2) and a nozzle (2) provided with a small cavity (4) near a discharge hole provided in a third layer located below the second layer.
- a ceramic material for example, a partially stabilized zirconia powder, a binder and a solvent, according to the method disclosed in paragraph Nos. 0010 to 0013 of Japanese Patent Application No. 9-335210 It can be produced by molding using a suitable auxiliary such as, and baking it.
- the nozzle (2) provided with the small cavities (4) in the vicinity of the discharge holes is located on the surface of the small cavities (4) perpendicular to the longitudinal direction of the pressurizing chamber (1).
- ZL 2 is 5 or more
- the position of the small cavity (4) must be determined by adjusting the thickness of the three layers forming the nozzle, ie, the layers 3a, 3b and 3c.
- the size of the small Kiyabiti shall, when the Nozzle diameter ⁇ , 5 X ( ⁇ 2/ 4) is ⁇ 2 0 ⁇ ( ⁇ 2/4 ).
- the small cavity (4) may be formed by, for example, punching or other mechanical processing or laser processing before laminating the 3b layer in FIG. Of course, also in this case, it is necessary to determine the length L and the diameter d of the nozzle (2) so that the aspect ratio is at least 5 or more.
- a pressurized chamber (1) provided in the first layer consist of a pressurized chamber (1) provided in the first layer, A liquid supply flow path (5) provided in the second layer located at a position, which communicates with the pressurizing chamber (1) through a microhole (10) for preventing backflow;
- a ceramic material for example, a partially stabilized zirconia powder, a binder, a solvent, etc., according to the method disclosed in paragraph Nos. 0110 to 0113 of Japanese Patent Application No. 9-335210 It can be produced by molding using an appropriate auxiliary agent and baking it. In this case, it is necessary to determine the length L and the diameter d of the nozzle (2) so that the aspect ratio is at least 5 or more.
- the nozzle (2) formed of a multi-stage taper may use the third layer having the desired number of stages, and the nozzle diameter of each stage may be the same, or The diameter of the nozzle formed in the upper stage may be formed so as to be gradually smaller than that in the lower stage. It is preferable that the cross section of each nozzle be configured such that the one closer to the discharge hole is smaller than the side of the pressurizing chamber (1), because the effect of trapping bubbles is further enhanced. Of course, also in this case, it is necessary to determine the length L and the diameter d of the nozzle (2) so that the aspect ratio is at least 5 or more. Industrial applicability
- the device according to the present invention is useful as a discharge device in the case of burning or drying of fuel or various liquid materials requiring stable liquid discharge. That is, for chemical synthesis or powder production, etc., for liquid supply equipment for the supply of liquid for reaction raw materials or for drying of solutions containing target products, and for various liquid fuels such as petroleum including oil fan heaters It can also be suitably used as a discharge device.
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Nozzles (AREA)
- Degasification And Air Bubble Elimination (AREA)
- Feeding, Discharge, Calcimining, Fusing, And Gas-Generation Devices (AREA)
- Nozzles For Spraying Of Liquid Fuel (AREA)
Description
Claims
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US09/720,351 US6533197B1 (en) | 1998-07-03 | 1999-06-30 | Device for discharging raw material-fuel |
| EP99926843A EP1093857A4 (en) | 1998-07-03 | 1999-06-30 | DISCHARGE DEVICE FOR MATERIALS AND FUELS |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10/188779 | 1998-07-03 | ||
| JP18877998A JP3352949B2 (ja) | 1998-07-03 | 1998-07-03 | 原料・燃料用吐出装置 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2000001491A1 true WO2000001491A1 (en) | 2000-01-13 |
Family
ID=16229652
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/JP1999/003510 Ceased WO2000001491A1 (en) | 1998-07-03 | 1999-06-30 | Discharging device for material and fuel |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US6533197B1 (ja) |
| EP (1) | EP1093857A4 (ja) |
| JP (1) | JP3352949B2 (ja) |
| WO (1) | WO2000001491A1 (ja) |
Families Citing this family (23)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6474566B1 (en) * | 2000-06-20 | 2002-11-05 | Ngk Insulators, Ltd. | Drop discharge device |
| US6875402B2 (en) * | 2000-10-16 | 2005-04-05 | Ngk Insulators, Ltd. | Micropipette, dispenser and method for producing biochip |
| US6739520B2 (en) * | 2001-10-02 | 2004-05-25 | Ngk Insulators, Ltd. | Liquid injection apparatus |
| JP2003214302A (ja) * | 2001-11-16 | 2003-07-30 | Ngk Insulators Ltd | 液体燃料噴射装置 |
| WO2003069153A1 (en) * | 2002-02-15 | 2003-08-21 | Ngk Insulators, Ltd. | Liquid injection device |
| JP2004052619A (ja) * | 2002-07-18 | 2004-02-19 | Ngk Insulators Ltd | 液体噴射装置 |
| US7124963B2 (en) * | 2004-11-05 | 2006-10-24 | Visteon Global Technologies, Inc. | Low pressure fuel injector nozzle |
| US7198207B2 (en) * | 2004-11-05 | 2007-04-03 | Visteon Global Technologies, Inc. | Low pressure fuel injector nozzle |
| US7438241B2 (en) * | 2004-11-05 | 2008-10-21 | Visteon Global Technologies, Inc. | Low pressure fuel injector nozzle |
| US7104475B2 (en) * | 2004-11-05 | 2006-09-12 | Visteon Global Technologies, Inc. | Low pressure fuel injector nozzle |
| US7168637B2 (en) * | 2004-11-05 | 2007-01-30 | Visteon Global Technologies, Inc. | Low pressure fuel injector nozzle |
| US7051957B1 (en) * | 2004-11-05 | 2006-05-30 | Visteon Global Technologies, Inc. | Low pressure fuel injector nozzle |
| US7137577B2 (en) * | 2004-11-05 | 2006-11-21 | Visteon Global Technologies, Inc. | Low pressure fuel injector nozzle |
| US7185831B2 (en) * | 2004-11-05 | 2007-03-06 | Ford Motor Company | Low pressure fuel injector nozzle |
| DE102004055326B3 (de) * | 2004-11-16 | 2006-03-16 | Webasto Ag | Verfahren und Vorrichtung zur Erzeugung eines feinverteilten Kraftstoffnebels |
| TWI290485B (en) * | 2005-12-30 | 2007-12-01 | Ind Tech Res Inst | Spraying device |
| EP2070429A1 (de) * | 2007-12-13 | 2009-06-17 | Cognis IP Management GmbH | Oxidative Stabilisierung von Sterolen und Sterolestern |
| JP5343869B2 (ja) * | 2010-01-15 | 2013-11-13 | セイコーエプソン株式会社 | ゲル製造装置 |
| KR101890755B1 (ko) * | 2011-11-25 | 2018-08-23 | 삼성전자 주식회사 | 잉크젯 프린팅 장치 및 노즐 형성 방법 |
| US9193163B2 (en) * | 2013-02-01 | 2015-11-24 | Canon Kabushiki Kaisha | Liquid discharge apparatus and manufacturing method thereof |
| US9566607B2 (en) | 2013-03-14 | 2017-02-14 | Illinois Tool Works Inc. | Surface appearance simulation systems and methods |
| US20150151540A1 (en) * | 2013-12-03 | 2015-06-04 | Illinois Tool Works Inc. | Printing fluid restrictor plate for an ink jet print head assembly and method |
| CN113772772B (zh) * | 2021-08-31 | 2023-07-18 | 国网冀北电力有限公司电力科学研究院 | 溶解氧去除装置、换流阀内冷水系统及其溶解氧去除方法 |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0640030A (ja) | 1992-05-27 | 1994-02-15 | Ngk Insulators Ltd | インクジェットプリントヘッド |
| JPH0699105A (ja) * | 1992-09-24 | 1994-04-12 | Matsushita Electric Ind Co Ltd | 霧化ノズル |
| JPH08274014A (ja) * | 1995-03-29 | 1996-10-18 | Tokyo Ohka Kogyo Co Ltd | 塗布ノズル、この塗布ノズルを用いた塗布方法及びこの塗布ノズルを組み込んだ塗布装置 |
Family Cites Families (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2201080A (en) * | 1938-12-24 | 1940-05-14 | Thomas Oldt Gutelius | Pressure cleaning apparatus |
| JPS58108158A (ja) * | 1981-12-23 | 1983-06-28 | Ricoh Co Ltd | インクジエツト記録装置 |
| US4734227A (en) * | 1983-09-01 | 1988-03-29 | Battelle Memorial Institute | Method of making supercritical fluid molecular spray films, powder and fibers |
| US4695854A (en) | 1986-07-30 | 1987-09-22 | Pitney Bowes Inc. | External manifold for ink jet array |
| US5155498A (en) * | 1990-07-16 | 1992-10-13 | Tektronix, Inc. | Method of operating an ink jet to reduce print quality degradation resulting from rectified diffusion |
| DE69111936T2 (de) * | 1990-08-16 | 1996-04-11 | Hewlett Packard Co | Photo-ablatierte Bauteile für Farbstrahldruckkopf. |
| ES2253174T3 (es) * | 1991-03-01 | 2006-06-01 | THE PROCTER & GAMBLE COMPANY | Pulverizacion de liquidos. |
| JPH05177834A (ja) * | 1991-06-04 | 1993-07-20 | Seiko Epson Corp | インクジェット記録ヘッド |
| US5969733A (en) * | 1996-10-21 | 1999-10-19 | Jemtex Ink Jet Printing Ltd. | Apparatus and method for multi-jet generation of high viscosity fluid and channel construction particularly useful therein |
| JP3809706B2 (ja) * | 1997-06-16 | 2006-08-16 | ブラザー工業株式会社 | インクジェットプリンタヘッド並びにインクジェットプリンタヘッドの加工及び検査方法 |
| JP3835942B2 (ja) | 1997-12-05 | 2006-10-18 | 日本碍子株式会社 | 粉末の製造方法 |
| US6126339A (en) * | 1998-09-04 | 2000-10-03 | Konica Corporation | Automatic processor for silver halide photosensitive photographic material |
-
1998
- 1998-07-03 JP JP18877998A patent/JP3352949B2/ja not_active Expired - Fee Related
-
1999
- 1999-06-30 WO PCT/JP1999/003510 patent/WO2000001491A1/ja not_active Ceased
- 1999-06-30 US US09/720,351 patent/US6533197B1/en not_active Expired - Fee Related
- 1999-06-30 EP EP99926843A patent/EP1093857A4/en not_active Withdrawn
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0640030A (ja) | 1992-05-27 | 1994-02-15 | Ngk Insulators Ltd | インクジェットプリントヘッド |
| JPH0699105A (ja) * | 1992-09-24 | 1994-04-12 | Matsushita Electric Ind Co Ltd | 霧化ノズル |
| JPH08274014A (ja) * | 1995-03-29 | 1996-10-18 | Tokyo Ohka Kogyo Co Ltd | 塗布ノズル、この塗布ノズルを用いた塗布方法及びこの塗布ノズルを組み込んだ塗布装置 |
Non-Patent Citations (1)
| Title |
|---|
| See also references of EP1093857A4 |
Also Published As
| Publication number | Publication date |
|---|---|
| EP1093857A4 (en) | 2004-12-29 |
| EP1093857A1 (en) | 2001-04-25 |
| JP2000015144A (ja) | 2000-01-18 |
| JP3352949B2 (ja) | 2002-12-03 |
| US6533197B1 (en) | 2003-03-18 |
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