BG60273B2 - Method and device for converting polluting fuel or waste materials into pure energy and useful products - Google Patents
Method and device for converting polluting fuel or waste materials into pure energy and useful productsInfo
- Publication number
- BG60273B2 BG60273B2 BG90458A BG9045889A BG60273B2 BG 60273 B2 BG60273 B2 BG 60273B2 BG 90458 A BG90458 A BG 90458A BG 9045889 A BG9045889 A BG 9045889A BG 60273 B2 BG60273 B2 BG 60273B2
- Authority
- BG
- Bulgaria
- Prior art keywords
- products
- water
- waste materials
- disaggregator
- mass
- Prior art date
Links
- 238000000034 method Methods 0.000 title abstract 3
- 239000000446 fuel Substances 0.000 title abstract 2
- 239000002699 waste material Substances 0.000 title 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract 5
- 239000007789 gas Substances 0.000 abstract 4
- 238000007664 blowing Methods 0.000 abstract 3
- 238000000354 decomposition reaction Methods 0.000 abstract 2
- 238000000605 extraction Methods 0.000 abstract 2
- 239000000463 material Substances 0.000 abstract 2
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 abstract 1
- 239000002154 agricultural waste Substances 0.000 abstract 1
- 229910002091 carbon monoxide Inorganic materials 0.000 abstract 1
- 238000006243 chemical reaction Methods 0.000 abstract 1
- 238000001816 cooling Methods 0.000 abstract 1
- 239000010791 domestic waste Substances 0.000 abstract 1
- 230000008030 elimination Effects 0.000 abstract 1
- 238000003379 elimination reaction Methods 0.000 abstract 1
- 239000003344 environmental pollutant Substances 0.000 abstract 1
- 229910052739 hydrogen Inorganic materials 0.000 abstract 1
- 239000001257 hydrogen Substances 0.000 abstract 1
- 125000004435 hydrogen atom Chemical class [H]* 0.000 abstract 1
- 239000002440 industrial waste Substances 0.000 abstract 1
- 231100000719 pollutant Toxicity 0.000 abstract 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
- C10J3/00—Production of combustible gases containing carbon monoxide from solid carbonaceous fuels
- C10J3/46—Gasification of granular or pulverulent flues in suspension
- C10J3/48—Apparatus; Plants
- C10J3/485—Entrained flow gasifiers
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
- C10J3/00—Production of combustible gases containing carbon monoxide from solid carbonaceous fuels
- C10J3/46—Gasification of granular or pulverulent flues in suspension
- C10J3/48—Apparatus; Plants
- C10J3/52—Ash-removing devices
- C10J3/526—Ash-removing devices for entrained flow gasifiers
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
- C10J3/00—Production of combustible gases containing carbon monoxide from solid carbonaceous fuels
- C10J3/58—Production of combustible gases containing carbon monoxide from solid carbonaceous fuels combined with pre-distillation of the fuel
- C10J3/60—Processes
- C10J3/64—Processes with decomposition of the distillation products
- C10J3/66—Processes with decomposition of the distillation products by introducing them into the gasification zone
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
- C10J3/00—Production of combustible gases containing carbon monoxide from solid carbonaceous fuels
- C10J3/72—Other features
- C10J3/721—Multistage gasification, e.g. plural parallel or serial gasification stages
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10K—PURIFYING OR MODIFYING THE CHEMICAL COMPOSITION OF COMBUSTIBLE GASES CONTAINING CARBON MONOXIDE
- C10K1/00—Purifying combustible gases containing carbon monoxide
- C10K1/08—Purifying combustible gases containing carbon monoxide by washing with liquids; Reviving the used wash liquors
- C10K1/10—Purifying combustible gases containing carbon monoxide by washing with liquids; Reviving the used wash liquors with aqueous liquids
- C10K1/101—Purifying combustible gases containing carbon monoxide by washing with liquids; Reviving the used wash liquors with aqueous liquids with water only
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10K—PURIFYING OR MODIFYING THE CHEMICAL COMPOSITION OF COMBUSTIBLE GASES CONTAINING CARBON MONOXIDE
- C10K1/00—Purifying combustible gases containing carbon monoxide
- C10K1/08—Purifying combustible gases containing carbon monoxide by washing with liquids; Reviving the used wash liquors
- C10K1/10—Purifying combustible gases containing carbon monoxide by washing with liquids; Reviving the used wash liquors with aqueous liquids
- C10K1/102—Purifying combustible gases containing carbon monoxide by washing with liquids; Reviving the used wash liquors with aqueous liquids containing free acid
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10K—PURIFYING OR MODIFYING THE CHEMICAL COMPOSITION OF COMBUSTIBLE GASES CONTAINING CARBON MONOXIDE
- C10K3/00—Modifying the chemical composition of combustible gases containing carbon monoxide to produce an improved fuel, e.g. one of different calorific value, which may be free from carbon monoxide
- C10K3/02—Modifying the chemical composition of combustible gases containing carbon monoxide to produce an improved fuel, e.g. one of different calorific value, which may be free from carbon monoxide by catalytic treatment
- C10K3/04—Modifying the chemical composition of combustible gases containing carbon monoxide to produce an improved fuel, e.g. one of different calorific value, which may be free from carbon monoxide by catalytic treatment reducing the carbon monoxide content, e.g. water-gas shift [WGS]
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
- C10J2200/00—Details of gasification apparatus
- C10J2200/15—Details of feeding means
- C10J2200/154—Pushing devices, e.g. pistons
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
- C10J2300/00—Details of gasification processes
- C10J2300/09—Details of the feed, e.g. feeding of spent catalyst, inert gas or halogens
- C10J2300/0953—Gasifying agents
- C10J2300/0959—Oxygen
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
- C10J2300/00—Details of gasification processes
- C10J2300/09—Details of the feed, e.g. feeding of spent catalyst, inert gas or halogens
- C10J2300/0953—Gasifying agents
- C10J2300/0966—Hydrogen
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
- C10J2300/00—Details of gasification processes
- C10J2300/16—Integration of gasification processes with another plant or parts within the plant
- C10J2300/164—Integration of gasification processes with another plant or parts within the plant with conversion of synthesis gas
- C10J2300/1643—Conversion of synthesis gas to energy
- C10J2300/1646—Conversion of synthesis gas to energy integrated with a fuel cell
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
- C10J2300/00—Details of gasification processes
- C10J2300/16—Integration of gasification processes with another plant or parts within the plant
- C10J2300/164—Integration of gasification processes with another plant or parts within the plant with conversion of synthesis gas
- C10J2300/1656—Conversion of synthesis gas to chemicals
- C10J2300/1662—Conversion of synthesis gas to chemicals to methane
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
- C10J2300/00—Details of gasification processes
- C10J2300/16—Integration of gasification processes with another plant or parts within the plant
- C10J2300/164—Integration of gasification processes with another plant or parts within the plant with conversion of synthesis gas
- C10J2300/1656—Conversion of synthesis gas to chemicals
- C10J2300/1668—Conversion of synthesis gas to chemicals to urea; to ammonia
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
- C10J2300/00—Details of gasification processes
- C10J2300/18—Details of the gasification process, e.g. loops, autothermal operation
- C10J2300/1861—Heat exchange between at least two process streams
-
- 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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E20/00—Combustion technologies with mitigation potential
- Y02E20/12—Heat utilisation in combustion or incineration of waste
-
- 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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E50/00—Technologies for the production of fuel of non-fossil origin
- Y02E50/30—Fuel from waste, e.g. synthetic alcohol or diesel
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Combustion & Propulsion (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Processing Of Solid Wastes (AREA)
- Hydrogen, Water And Hydrids (AREA)
- Physical Or Chemical Processes And Apparatus (AREA)
- Solid Fuels And Fuel-Associated Substances (AREA)
- Industrial Gases (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| IT41606/87A IT1218575B (it) | 1987-05-28 | 1987-05-28 | Procedimento di recupero da prodotti fossili, vegetali, aggregati inquinanti di rifiuto e non, di combustibili gassosi puri, sostanze inerti utili e disinquinanti, mediante separazione in funzione del contenuto energetico, senza provocare inquinamenti, con eventuale ausilio ed accumulo di energia rinnovabile idrogeno ed usando calore di supero per riscaldare dall'alto acqua onde depurarla |
| PCT/EP1988/000478 WO1988009363A1 (en) | 1987-05-28 | 1988-05-27 | Process and machine for the transformation of combustible pollutants or waste materials into clean energy and utilisable products |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| BG60273B1 BG60273B1 (bg) | 1994-03-31 |
| BG60273B2 true BG60273B2 (en) | 1994-03-31 |
Family
ID=11251892
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BG90458A BG60273B2 (en) | 1987-05-28 | 1989-11-27 | Method and device for converting polluting fuel or waste materials into pure energy and useful products |
Country Status (25)
| Country | Link |
|---|---|
| US (1) | US5310411A (es) |
| EP (2) | EP0362281A1 (es) |
| JP (1) | JP2515870B2 (es) |
| AT (1) | ATE66243T1 (es) |
| AU (2) | AU1949788A (es) |
| BG (1) | BG60273B2 (es) |
| BR (1) | BR8807521A (es) |
| CA (1) | CA1335862C (es) |
| DD (1) | DD285819A5 (es) |
| DE (1) | DE3864190D1 (es) |
| DK (1) | DK174246B1 (es) |
| ES (1) | ES2024589B3 (es) |
| FI (1) | FI92600C (es) |
| GR (1) | GR3003049T3 (es) |
| HU (1) | HU205775B (es) |
| IE (1) | IE60823B1 (es) |
| IL (1) | IL86540A (es) |
| IS (1) | IS1528B (es) |
| IT (1) | IT1218575B (es) |
| MW (1) | MW6289A1 (es) |
| OA (1) | OA09103A (es) |
| RO (1) | RO110529B1 (es) |
| RU (1) | RU1811535C (es) |
| WO (1) | WO1988009363A1 (es) |
| ZA (1) | ZA883854B (es) |
Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2006139C (en) * | 1989-12-20 | 1995-08-29 | Robert A. Ritter | Lined hazardous waste incinerator |
| US5656044A (en) * | 1992-05-07 | 1997-08-12 | Hylsa S.A. De C.V. | Method and apparatus for gasification of organic materials |
| US5851246A (en) * | 1992-05-07 | 1998-12-22 | Hylsa, S.A. De C.V. | Apparatus for gasifying organic materials |
| JPH0673384A (ja) * | 1992-05-07 | 1994-03-15 | Hylsa Sa | 有機物質をガス化するための方法および装置 |
| US5611947A (en) * | 1994-09-07 | 1997-03-18 | Alliant Techsystems, Inc. | Induction steam plasma torch for generating a steam plasma for treating a feed slurry |
| US5762009A (en) * | 1995-06-07 | 1998-06-09 | Alliant Techsystems, Inc. | Plasma energy recycle and conversion (PERC) reactor and process |
| AU3512399A (en) * | 1998-04-28 | 1999-11-16 | Bruno Berger | Waste to energy method for producing electricity, water and/or hydrogen and/or methanol from biomass and/or organic waste |
| ITVE20020030A1 (it) * | 2002-10-01 | 2004-04-02 | Valerio Tognazzo | Processo ed impianto per effettuare la ultradepurazione di fumi o gas con recupero totale degli inquinanti di risulta. - |
| US20050079127A1 (en) * | 2003-08-18 | 2005-04-14 | Hylsa, S.A. De C.V. | Method and apparatus for destruction of liquid toxic wastes and generation of a reducing gas |
| DE102008039187B4 (de) * | 2008-08-20 | 2019-06-19 | Siemens Aktiengesellschaft | Leistungsschalter, insbesondere für Niederspannungen |
| US20140037507A1 (en) * | 2012-07-31 | 2014-02-06 | Hsiao-Lun WANG | Organic compound pyrolysis flashover energy-saving regeneration treatment system |
Family Cites Families (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2699384A (en) * | 1949-12-20 | 1955-01-11 | Du Pont | Preparation of carbon monoxide and hydrogen from carbonaceous solids |
| LU35060A1 (es) * | 1956-05-18 | 1900-01-01 | ||
| DE1208026B (de) * | 1961-12-09 | 1965-12-30 | Koppers Gmbh Heinrich | Einrichtung zur Brenngaserzeugung durch Vergasung feinverteilter Brennstoffe |
| GB1454073A (en) * | 1974-02-21 | 1976-10-27 | Bischoff Gasreinigung | Plant for cleaning the waste gases from a refuse burning plant |
| EP0019989B1 (en) * | 1979-03-27 | 1983-06-22 | Imperial Chemical Industries Plc | Method for producing a solution containing nitrates of iron and chromium and making a high temperature shift catalyst from it |
| DE3009851C2 (de) * | 1980-03-14 | 1983-09-15 | Karrena GmbH, 4000 Düsseldorf | Reaktorbehälter, insbesondere zur Vergasung fossiler Brennstoffe |
| US4334892A (en) * | 1980-07-31 | 1982-06-15 | Foster Wheeler Energy Corporation | Gas producer apparatus including a water jacket |
| EP0057029A1 (fr) * | 1981-01-21 | 1982-08-04 | ATELIERS DE CONSTRUCTIONS ELECTRIQUES DE CHARLEROI (ACEC) Société Anonyme | Procédé de traitement de matières pulvérulentes a haute température et installation pour le réaliser |
| US4525176A (en) * | 1983-08-29 | 1985-06-25 | Texaco Inc. | Preheating and deslagging a gasifier |
| US4721611A (en) * | 1984-03-02 | 1988-01-26 | Imperial Chemical Industries Plc | Hydrogen production |
| US4547203A (en) * | 1984-03-30 | 1985-10-15 | Texaco Development Corporation | Partial oxidation process |
| SE453750B (sv) * | 1984-06-14 | 1988-02-29 | Skf Steel Eng Ab | Sett for forgasning av finfordelat kolhaltigt material |
| FI86107C (fi) * | 1984-09-21 | 1992-07-10 | Skf Steel Eng Ab | Foerfarande foer destruktion av miljoefarligt avfall. |
| DD227980A1 (de) * | 1984-10-29 | 1985-10-02 | Freiberg Brennstoffinst | Apparat fuer die vergasung von kohlenstaub |
| AT382388B (de) | 1985-03-08 | 1987-02-25 | Voest Alpine Ag | Vorrichtung zur vergasung von brennstoffen |
-
1987
- 1987-05-28 IT IT41606/87A patent/IT1218575B/it active
-
1988
- 1988-05-27 AT AT88108495T patent/ATE66243T1/de not_active IP Right Cessation
- 1988-05-27 EP EP88905366A patent/EP0362281A1/en active Pending
- 1988-05-27 DD DD88316150A patent/DD285819A5/de not_active IP Right Cessation
- 1988-05-27 WO PCT/EP1988/000478 patent/WO1988009363A1/en active IP Right Grant
- 1988-05-27 BR BR888807521A patent/BR8807521A/pt not_active IP Right Cessation
- 1988-05-27 EP EP88108495A patent/EP0292987B1/en not_active Expired - Lifetime
- 1988-05-27 AU AU19497/88A patent/AU1949788A/en not_active Abandoned
- 1988-05-27 DE DE8888108495T patent/DE3864190D1/de not_active Expired - Lifetime
- 1988-05-27 US US07/455,350 patent/US5310411A/en not_active Expired - Lifetime
- 1988-05-27 IL IL86540A patent/IL86540A/xx not_active IP Right Cessation
- 1988-05-27 RO RO142770A patent/RO110529B1/ro unknown
- 1988-05-27 JP JP63505054A patent/JP2515870B2/ja not_active Expired - Lifetime
- 1988-05-27 ES ES88108495T patent/ES2024589B3/es not_active Expired - Lifetime
- 1988-05-27 HU HU883737A patent/HU205775B/hu not_active IP Right Cessation
- 1988-05-30 IE IE161888A patent/IE60823B1/en not_active IP Right Cessation
- 1988-05-30 AU AU16759/88A patent/AU599234B2/en not_active Ceased
- 1988-05-30 IS IS3351A patent/IS1528B/is unknown
- 1988-05-30 ZA ZA883854A patent/ZA883854B/xx unknown
- 1988-05-30 CA CA000568137A patent/CA1335862C/en not_active Expired - Fee Related
-
1989
- 1989-11-24 MW MW62/89A patent/MW6289A1/xx unknown
- 1989-11-27 RU SU894742650A patent/RU1811535C/ru active
- 1989-11-27 BG BG90458A patent/BG60273B2/xx unknown
- 1989-11-27 DK DK198905961A patent/DK174246B1/da not_active IP Right Cessation
- 1989-11-27 OA OA59685A patent/OA09103A/xx unknown
- 1989-11-28 FI FI895679A patent/FI92600C/fi not_active IP Right Cessation
-
1991
- 1991-10-31 GR GR91401642T patent/GR3003049T3/el unknown
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