ES410103A1 - Instalacion para purificacion mecanico-biologica de agua residual. - Google Patents
Instalacion para purificacion mecanico-biologica de agua residual.Info
- Publication number
- ES410103A1 ES410103A1 ES410103A ES410103A ES410103A1 ES 410103 A1 ES410103 A1 ES 410103A1 ES 410103 A ES410103 A ES 410103A ES 410103 A ES410103 A ES 410103A ES 410103 A1 ES410103 A1 ES 410103A1
- Authority
- ES
- Spain
- Prior art keywords
- installation
- mechanical
- waste water
- filter
- biological purification
- 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.)
- Expired
Links
- 238000009434 installation Methods 0.000 title abstract 2
- 238000000746 purification Methods 0.000 title abstract 2
- 239000002351 wastewater Substances 0.000 title abstract 2
- 238000005352 clarification Methods 0.000 abstract 2
- 239000010865 sewage Substances 0.000 abstract 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D33/00—Filters with filtering elements which move during the filtering operation
- B01D33/06—Filters with filtering elements which move during the filtering operation with rotary cylindrical filtering surfaces, e.g. hollow drums
- B01D33/067—Construction of the filtering drums, e.g. mounting or sealing arrangements
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D33/00—Filters with filtering elements which move during the filtering operation
- B01D33/06—Filters with filtering elements which move during the filtering operation with rotary cylindrical filtering surfaces, e.g. hollow drums
- B01D33/073—Filters with filtering elements which move during the filtering operation with rotary cylindrical filtering surfaces, e.g. hollow drums arranged for inward flow filtration
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D33/00—Filters with filtering elements which move during the filtering operation
- B01D33/15—Filters with filtering elements which move during the filtering operation with rotary plane filtering surfaces
- B01D33/21—Filters with filtering elements which move during the filtering operation with rotary plane filtering surfaces with hollow filtering discs transversely mounted on a hollow rotary shaft
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D33/00—Filters with filtering elements which move during the filtering operation
- B01D33/44—Regenerating the filter material in the filter
- B01D33/48—Regenerating the filter material in the filter by flushing, e.g. counter-current air-bumps
- B01D33/50—Regenerating the filter material in the filter by flushing, e.g. counter-current air-bumps with backwash arms, shoes or nozzles
- B01D33/503—Regenerating the filter material in the filter by flushing, e.g. counter-current air-bumps with backwash arms, shoes or nozzles the backwash arms, shoes acting on the cake side
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D33/00—Filters with filtering elements which move during the filtering operation
- B01D33/70—Filters with filtering elements which move during the filtering operation having feed or discharge devices
- B01D33/74—Filters with filtering elements which move during the filtering operation having feed or discharge devices for discharging filtrate
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D33/00—Filters with filtering elements which move during the filtering operation
- B01D33/80—Accessories
- B01D33/801—Driving means, shaft packing systems or the like
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D33/00—Filters with filtering elements which move during the filtering operation
- B01D33/80—Accessories
- B01D33/804—Accessories integrally combined with devices for controlling the filtration
- B01D33/807—Accessories integrally combined with devices for controlling the filtration by level measuring
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/02—Aerobic processes
- C02F3/08—Aerobic processes using moving contact bodies
- C02F3/082—Rotating biological contactors
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/02—Aerobic processes
- C02F3/10—Packings; Fillings; Grids
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/02—Aerobic processes
- C02F3/10—Packings; Fillings; Grids
- C02F3/103—Textile-type packing
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2201/00—Details relating to filtering apparatus
- B01D2201/58—Power supply means for regenerating the filter
- B01D2201/583—Power supply means for regenerating the filter using the kinetic energy of the fluid circulating in the filtering device
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/10—Biological treatment of water, waste water, or sewage
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Life Sciences & Earth Sciences (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Hydrology & Water Resources (AREA)
- Microbiology (AREA)
- Biodiversity & Conservation Biology (AREA)
- Health & Medical Sciences (AREA)
- Molecular Biology (AREA)
- Biological Treatment Of Waste Water (AREA)
- Filtration Of Liquid (AREA)
- Filtering Materials (AREA)
- Treatment Of Sludge (AREA)
Abstract
Instalación para la purificación mecánico-biológica de agua residual, por lo menos con un grado biológico y un grado de clarificación posterior, presentando el grado de clarificación posterior un filtro, caracterizada porque el filtro es un filtro de tambor en cuya superficie de filtro en el lado de aplicación de suspensión ataca una tobera de aspiración, que se extiende transversalmente a la dirección de un movimiento relativo entre la superficie filtrante y la tobera aspiradora
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH1913071A CH553588A (de) | 1971-12-29 | 1971-12-29 | Anlage zur biologisch-mechanischen reinigung von abwasser. |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| ES410103A1 true ES410103A1 (es) | 1975-12-16 |
Family
ID=4437542
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| ES410103A Expired ES410103A1 (es) | 1971-12-29 | 1972-12-28 | Instalacion para purificacion mecanico-biologica de agua residual. |
Country Status (22)
| Country | Link |
|---|---|
| US (1) | US4090965A (es) |
| AR (1) | AR198069A1 (es) |
| AT (1) | AT327114B (es) |
| AU (1) | AU464334B2 (es) |
| BE (1) | BE793322A (es) |
| BR (1) | BR7209284D0 (es) |
| CA (1) | CA993804A (es) |
| CH (1) | CH553588A (es) |
| DD (1) | DD100695A5 (es) |
| DK (1) | DK143222C (es) |
| ES (1) | ES410103A1 (es) |
| FI (1) | FI55638C (es) |
| FR (1) | FR2166129B1 (es) |
| GB (1) | GB1415880A (es) |
| IL (1) | IL41108A (es) |
| IT (1) | IT972563B (es) |
| LU (1) | LU66752A1 (es) |
| NL (1) | NL7217814A (es) |
| NO (1) | NO135179C (es) |
| SE (1) | SE435613B (es) |
| YU (1) | YU328972A (es) |
| ZA (1) | ZA729119B (es) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ES2168931A1 (es) * | 1999-12-30 | 2002-06-16 | Cobos Jose Reyero | Recicladora de aguas residuales de aguas de lavado y proceso para su limpieza. |
Families Citing this family (54)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| IT1090470B (it) * | 1976-09-24 | 1985-06-26 | Niigata Engineering Co Ltd | Procedimento ed impianto per trattare acque di rifiuto mediante microrganismi |
| SE408409B (sv) * | 1977-02-16 | 1979-06-11 | Hakansson Lars Ake Hilmer | Anordning for rening av vetska, foretredesvis avloppsvatten fran industriella processer |
| FR2396123A1 (fr) * | 1977-07-01 | 1979-01-26 | Beaudrey & Cie | Tamis de prise d'eau a dispositif de sauvegarde pour la protection des elements vivants, en particulier poissons, et dispositif de sauvegarde correspondant |
| SE409735B (sv) * | 1977-12-30 | 1979-09-03 | Kaelle Eur Control | Massasilanordning |
| DE3126438A1 (de) * | 1981-07-04 | 1983-01-13 | Mecapec S.A., 8716 Schmerikon | Abwasser-trommelfilter |
| GB8302949D0 (en) * | 1983-02-03 | 1983-03-09 | British Petroleum Co Plc | Flow of fluid through porous matrix |
| DE3439548A1 (de) * | 1983-11-11 | 1985-05-23 | VEB Projektierung Wasserwirtschaft Stammbetrieb des Kombinates Wassertechnik und Projektierung Wasserwirtschaft, DDR 4020 Halle | Verfahren und vorrichtung zur biologischen behandlung von abwasser |
| DE3438170A1 (de) * | 1984-10-18 | 1986-04-24 | Mecapec S.A., Schmerikon | Anlage zur mechanischen reinigung von abwasser |
| FR2587912B1 (fr) * | 1985-10-01 | 1988-01-08 | Milcap France Sa | Garnissage textile formant support pour bio-transformation et separation de phase |
| US4702845A (en) * | 1986-02-06 | 1987-10-27 | Amsted Industries Incorporated | Rotary drum filter |
| DE4225818C2 (de) * | 1991-09-11 | 1993-12-09 | Geldmacher Joachim | Filter zum kontinuierlichen Filtern von Feststoffe o. dgl. aufweisenden Flüssigkeiten |
| US5326459A (en) * | 1992-11-12 | 1994-07-05 | Envirex Inc. | Wastewater treatment apparatus |
| DE4339268C2 (de) * | 1993-11-18 | 1996-01-25 | Huber Hans Gmbh Maschinen Und | Verfahren und Vorrichtung zum Ausfiltern und Rückspülen von Feststoff-Partikeln aus Flüssigkeiten |
| US5362401A (en) * | 1993-12-14 | 1994-11-08 | Aqua-Aerobic Systems, Inc. | Method and apparatus for cleaning a filter apparatus |
| US5374360A (en) * | 1993-12-14 | 1994-12-20 | Aqua-Aerobic Systems, Inc. | Method and apparatus for cleaning a filter apparatus |
| CN1104385C (zh) * | 1995-05-23 | 2003-04-02 | 株式会社荏原制作所 | 用于废液处理设备的载体分离及液体收集装置 |
| US5876612A (en) * | 1997-03-03 | 1999-03-02 | Aqua-Aerobic Systems, Inc. | Method and apparatus for cleaning filter material in a filter apparatus |
| US6090298A (en) * | 1997-12-10 | 2000-07-18 | Aqua-Aerobic Systems, Inc. | Method and apparatus for cleaning filter material in a filter apparatus utilizing a suction generating assembly |
| US5951878A (en) * | 1998-03-20 | 1999-09-14 | Aqua-Aerobic Systems, Inc. | Method and apparatus for cleaning filter material in a filter apparatus utilizing a suction generating nozzle |
| US6110374A (en) * | 1998-06-30 | 2000-08-29 | Aqua-Aerobic Systems, Inc. | Treatment process for removing microbial contaminants suspended in wastewater |
| US6447617B1 (en) | 2000-03-17 | 2002-09-10 | Aqua-Aerobic Systems, Inc. | High efficiency cleaning of rotating filter media |
| US6294098B1 (en) | 2000-05-23 | 2001-09-25 | Aqua-Aerobics System, Inc. | High efficiency backwash shoe |
| US6821425B2 (en) * | 2002-02-06 | 2004-11-23 | U.S. Environmental Protection Agency | Biomass concentrator reactor |
| US6858140B2 (en) | 2002-12-26 | 2005-02-22 | Aqua-Aerobic Systems, Inc. | Processes and devices for water and wastewater treatment, including stationary cloth media filtration |
| US7807050B2 (en) * | 2002-12-26 | 2010-10-05 | Aqua-Aerobic Systems, Inc. | Backwash assembly and method having a rotating backwash arm for cleaning cloth filter media |
| US7833424B1 (en) | 2002-12-26 | 2010-11-16 | Aqua-Aerobic Systems, Inc. | Backwash assembly and method having a rotating backwash arm for cleaning cloth filter media |
| US20040134842A1 (en) * | 2003-01-09 | 2004-07-15 | Ricketts Donald D. | Tertiary filter |
| US7678284B2 (en) * | 2003-01-09 | 2010-03-16 | Grouse Mountain, Inc. | Tertiary filter |
| EP1470848A1 (de) * | 2003-04-24 | 2004-10-27 | Utisol Technologies AG | Filtereinrichtung und Verfahren zur periodischen Reinigung eines Filters |
| US7892421B2 (en) * | 2003-06-05 | 2011-02-22 | Aqua-Aerobic Systems, Inc. | Stationary cloth media filtration and self-aligning backwash assembly |
| US8329045B2 (en) | 2003-06-05 | 2012-12-11 | Aqua-Aerobic Systems, Inc. | Stationary cloth media filtration |
| US7083735B2 (en) * | 2003-09-03 | 2006-08-01 | Laing David A | High debris content strainer |
| US7097046B2 (en) * | 2004-03-03 | 2006-08-29 | Gerry Calabrese | Automatically cleaning filter assembly for a liquid-carrying loop |
| FR2962049B1 (fr) * | 2010-07-02 | 2015-04-24 | Veolia Water Solutions & Tech | Dispositif de traitement d'eau comprenant un tambour filtrant plein |
| US8734641B2 (en) | 2010-09-08 | 2014-05-27 | Anthony Collins | Tertiary wastewater filtration using inclined filter media and internal reverse flow backwashing of filter disks |
| US8778174B2 (en) | 2010-10-15 | 2014-07-15 | Alfa Laval Ashbrook Simon-Hartley Inc. | Methods and apparatus for treating water and wastewater employing a cloth disk filter |
| DE102011017739A1 (de) * | 2011-04-28 | 2012-10-31 | Uwe Würdig | Verfahren und Vorrichtung zur Anreicherung einer Flüssigkeit mit Gas |
| US8926843B2 (en) * | 2011-06-21 | 2015-01-06 | Veolia Water Solutions & Technologies Support | Method and apparatus for treating water and controlling effluent surges produced by disc and drum filters |
| US8852445B2 (en) | 2011-10-28 | 2014-10-07 | Alfa Laval Ashbrook Simon-Hartley, Inc | Methods and apparatus for treating water and wastewater employing a cloth disk filter |
| US10905981B2 (en) | 2011-10-28 | 2021-02-02 | Alfa Laval Corporate Ab | Methods and apparatus for treating water and wastewater employing a cloth filter |
| GB2517985B (en) | 2013-09-09 | 2016-01-06 | Berishtenu Agricultural Cooperative | Sheaf-based fluid filter |
| CN106457089A (zh) | 2014-06-05 | 2017-02-22 | 伊沃夸水处理技术有限责任公司 | 过滤板以及制作过滤板的方法 |
| CN104174203B (zh) * | 2014-09-04 | 2016-02-17 | 南阳鑫子源石油石化技术装备有限公司 | 转鼓压泥机 |
| ES2927357T3 (es) * | 2016-08-12 | 2022-11-04 | Evoqua Water Tech Llc | Filtro de disco de medios dobles prepantallla de filtro de disco |
| NO343073B1 (en) * | 2017-02-14 | 2018-10-29 | Rognsoey Richard | A container arrangement for fish farming |
| US10195549B1 (en) | 2017-11-21 | 2019-02-05 | Aqua-Aerobic Systems, Inc. | Backwash shoe method and apparatus that increases effective surface area of cloth filter media |
| DK201870747A1 (en) * | 2018-11-14 | 2020-06-23 | Bollfilter Nordic Aps | Filter candle and method for operating such filter candle |
| US11529573B2 (en) | 2019-04-23 | 2022-12-20 | Greatpyr Resources Llc | Systems and processes employing wet/dry suction filter |
| KR102183820B1 (ko) * | 2020-03-10 | 2020-11-30 | 주식회사 그레넥스 | 섬유상 여과기의 역세정 흡입장치 |
| KR102264455B1 (ko) * | 2020-08-03 | 2021-06-11 | 문연우 | 여과포 표면에 홈을 형성하는 홈형성수단을 포함하는 섬유디스크필터 |
| US12377372B2 (en) | 2021-06-08 | 2025-08-05 | Greatpyr Resources Llc | Apparatus, systems, and processes employing wet/dry suction filter with chicaned suction head |
| US12246272B2 (en) | 2021-11-04 | 2025-03-11 | Thomas E. Frankel | Wastewater filters and wastewater filtration systems specifically adapted for their use |
| DE102022118497A1 (de) | 2022-07-25 | 2024-01-25 | Mecana Umwelttechnik Gmbh | Vorrichtung zum Reinigen und/oder Absaugen von Polfasern für die Polstofffiltration |
| WO2026038146A1 (en) | 2024-08-15 | 2026-02-19 | Veolia Water Solutions & Technologies Support | Filter cloth panel for a disc filter and method of assembling the panel |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1026729B (de) * | 1955-04-26 | 1958-03-27 | Hans Jung | Vorrichtung und Verfahren zur mechanisch-pneumatischen Entfernung von Rueckstaenden aus periodisch arbeitenden Filtern, insbesondere aus Tauchdruckfiltern |
| DE1459482B2 (de) * | 1955-10-18 | 1971-06-16 | Hartmann, Hans, Dr Ing , 8501 Wachen dorf | Vorrichtung zur biologischen reinigung von abwaessern |
| US3074560A (en) * | 1959-01-07 | 1963-01-22 | Kinney Eng Inc S P | Positive pressure backwash strainer |
| US3347379A (en) * | 1965-04-12 | 1967-10-17 | Ex Cell O Corp | Filtration apparatus |
| US3400822A (en) * | 1966-09-07 | 1968-09-10 | Macleod & Miller Engineers Ltd | Extended aeration sewage treatment plants |
| US3472002A (en) * | 1967-02-09 | 1969-10-14 | North American Rockwell | Self-cleaning drum type filter assembly |
| SE316124B (es) * | 1968-10-23 | 1969-10-13 | Svenska Interpur Ab | |
| US3619420A (en) * | 1969-08-22 | 1971-11-09 | Nalco Chemical Co | Sewage treatment process |
| US3703462A (en) * | 1971-01-06 | 1972-11-21 | George W Smith | Sewage treatment apparatus and method |
| US3744634A (en) * | 1971-02-25 | 1973-07-10 | N Schlenz | Package sewage treatment plant |
-
0
- BE BE793322D patent/BE793322A/xx not_active IP Right Cessation
-
1971
- 1971-12-29 CH CH1913071A patent/CH553588A/xx not_active IP Right Cessation
-
1972
- 1972-12-18 IL IL41108A patent/IL41108A/en unknown
- 1972-12-19 IT IT3317072D patent/IT972563B/it active
- 1972-12-26 US US05/318,541 patent/US4090965A/en not_active Expired - Lifetime
- 1972-12-27 ZA ZA729119A patent/ZA729119B/xx unknown
- 1972-12-27 LU LU66752D patent/LU66752A1/de unknown
- 1972-12-27 FI FI365972A patent/FI55638C/fi active
- 1972-12-28 CA CA160,146A patent/CA993804A/en not_active Expired
- 1972-12-28 NO NO481572A patent/NO135179C/no unknown
- 1972-12-28 DK DK650872A patent/DK143222C/da not_active IP Right Cessation
- 1972-12-28 ES ES410103A patent/ES410103A1/es not_active Expired
- 1972-12-28 AU AU50512/72A patent/AU464334B2/en not_active Expired
- 1972-12-28 FR FR7246620A patent/FR2166129B1/fr not_active Expired
- 1972-12-28 AR AR24591372A patent/AR198069A1/es active
- 1972-12-28 DD DD16794672A patent/DD100695A5/xx unknown
- 1972-12-29 GB GB6004972A patent/GB1415880A/en not_active Expired
- 1972-12-29 SE SE1720172A patent/SE435613B/xx unknown
- 1972-12-29 NL NL7217814A patent/NL7217814A/xx not_active Application Discontinuation
- 1972-12-29 BR BR928472A patent/BR7209284D0/pt unknown
- 1972-12-29 YU YU328972A patent/YU328972A/xx unknown
- 1972-12-29 AT AT1117072A patent/AT327114B/de not_active IP Right Cessation
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ES2168931A1 (es) * | 1999-12-30 | 2002-06-16 | Cobos Jose Reyero | Recicladora de aguas residuales de aguas de lavado y proceso para su limpieza. |
Also Published As
| Publication number | Publication date |
|---|---|
| CH553588A (de) | 1974-09-13 |
| DE2261203B2 (de) | 1976-04-29 |
| BE793322A (fr) | 1973-04-16 |
| US4090965A (en) | 1978-05-23 |
| AU464334B2 (en) | 1975-08-07 |
| ZA729119B (en) | 1973-10-31 |
| AT327114B (de) | 1976-01-12 |
| LU66752A1 (es) | 1973-02-27 |
| FR2166129A1 (es) | 1973-08-10 |
| YU328972A (en) | 1982-02-28 |
| NO135179B (es) | 1976-11-15 |
| FR2166129B1 (es) | 1979-02-09 |
| DK143222C (da) | 1982-01-04 |
| FI55638B (fi) | 1979-05-31 |
| CA993804A (en) | 1976-07-27 |
| DE2261203A1 (de) | 1973-07-12 |
| IL41108A0 (en) | 1973-02-28 |
| SE435613B (sv) | 1984-10-08 |
| FI55638C (fi) | 1979-09-10 |
| ATA1117072A (de) | 1975-03-15 |
| AU5051272A (en) | 1974-07-04 |
| BR7209284D0 (pt) | 1973-10-09 |
| DK143222B (da) | 1981-07-27 |
| IT972563B (it) | 1974-05-31 |
| GB1415880A (en) | 1975-12-03 |
| IL41108A (en) | 1976-06-30 |
| NL7217814A (es) | 1973-07-03 |
| NO135179C (es) | 1977-02-23 |
| AR198069A1 (es) | 1974-05-31 |
| DD100695A5 (es) | 1973-10-05 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FD1A | Patent lapsed |
Effective date: 19840225 |