GB2004993A - Process and apparatus for supplying pulverulent fuel for the pressure gasification - Google Patents
Process and apparatus for supplying pulverulent fuel for the pressure gasificationInfo
- Publication number
- GB2004993A GB2004993A GB7837199A GB7837199A GB2004993A GB 2004993 A GB2004993 A GB 2004993A GB 7837199 A GB7837199 A GB 7837199A GB 7837199 A GB7837199 A GB 7837199A GB 2004993 A GB2004993 A GB 2004993A
- Authority
- GB
- United Kingdom
- Prior art keywords
- carrier gas
- pulverulent fuel
- sectional area
- feed line
- gasifier
- 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
Links
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
- C10J3/72—Other features
- C10J3/723—Controlling or regulating the gasification process
-
- 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
- C10J3/466—Entrained flow processes
-
- 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
- C10J3/50—Fuel charging devices
- C10J3/506—Fuel charging 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
- 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
- C10J2300/0973—Water
- C10J2300/0976—Water as steam
-
- 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
- C10J2300/12—Heating the gasifier
- C10J2300/1223—Heating the gasifier by burners
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Combustion & Propulsion (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Organic Chemistry (AREA)
- Processing Of Solid Wastes (AREA)
- Cosmetics (AREA)
- Devices And Processes Conducted In The Presence Of Fluids And Solid Particles (AREA)
- Drying Of Solid Materials (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Industrial Gases (AREA)
- Fluidized-Bed Combustion And Resonant Combustion (AREA)
Abstract
Pulverulent fuel e.g. dried lignite is supplied to a suspension gasifier under pressure from a lock hopper (5) into a dosage container (7), the powder heap is partially fluidized by a carrier gas and the carrier gas, charged with pulverulent fuel, is passed by a feed line (9), towards the burner(s) (30) of the gasification reactor (31), the ratio of internal cross-sectional area of the feed line to the free cross-sectional area of the partially fluidised layer is arranged to be from 1:50 to 1:300 and the power stream is regulated by varying the carrier gas stream, injected into the lower part of the dosage container (7) in accordance with the powder flow or a parameter measured in the gasifier. <IMAGE>
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DD20106477A DD147188A3 (en) | 1977-09-19 | 1977-09-19 | METHOD AND DEVICE FOR PRESSURE GASIFICATION OF DUST-SOUND FUELS |
Publications (2)
Publication Number | Publication Date |
---|---|
GB2004993A true GB2004993A (en) | 1979-04-11 |
GB2004993B GB2004993B (en) | 1982-03-31 |
Family
ID=5509765
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB7837199A Expired GB2004993B (en) | 1977-09-19 | 1978-09-18 | Process and apparatus for the pressure gasification of pulverulent fuels |
Country Status (15)
Country | Link |
---|---|
JP (1) | JPS594476B2 (en) |
AT (1) | AT378199B (en) |
AU (1) | AU520077B2 (en) |
CS (1) | CS222955B1 (en) |
DD (1) | DD147188A3 (en) |
DE (1) | DE2831208A1 (en) |
FR (1) | FR2403377A1 (en) |
GB (1) | GB2004993B (en) |
GR (1) | GR65885B (en) |
HU (1) | HU180684B (en) |
IN (1) | IN150296B (en) |
PL (1) | PL111707B1 (en) |
SU (1) | SU1167194A1 (en) |
TR (1) | TR20754A (en) |
YU (2) | YU220078A (en) |
Cited By (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7607398B2 (en) | 2005-10-04 | 2009-10-27 | Siemens Aktiengesellschaft | Method and device for the regulated feed of pulverized fuel to an entrained flow gasifier |
US7744665B2 (en) * | 2005-09-03 | 2010-06-29 | Siemens Aktiengesellschaft | Gasification method and device for producing synthesis gases by partial oxidation of fuels containing ash at elevated pressure with partial quenching of the crude gas and waste heat recovery |
AU2006201145B2 (en) * | 2005-09-09 | 2010-07-08 | Manfred Schingnitz | Method and device for producing synthesis gases by partial oxidation of slurries prepared from fuels containing ash and full quenching of the crude gas |
US7842108B2 (en) * | 2005-08-24 | 2010-11-30 | Siemens Aktiengesellschaft | Gasification method and device for producing synthesis gases by partial oxidation of fuels containing ash at elevated pressure and with quench-cooling of the crude gas |
AU2006201142B2 (en) * | 2005-10-07 | 2011-07-21 | Siemens Energy Global GmbH & Co. KG | Method and device for high-capacity entrained flow gasifier |
AU2006203439B2 (en) * | 2006-08-09 | 2012-05-03 | Siemens Energy Global GmbH & Co. KG | Method and device for high-capacity entrained flow gasifier |
US8303673B2 (en) * | 2006-08-25 | 2012-11-06 | Siemens Aktiengesellschaft | Method and device for a high-capacity entrained flow gasifier |
US8646664B2 (en) | 2008-03-17 | 2014-02-11 | Thyssenkrupp Uhde Gmbh | Method and device for the metered removal of a fine to coarse-grained solid matter or solid matter mixture from a storage container |
US9254469B2 (en) | 2013-11-25 | 2016-02-09 | Siemens Aktiengesellschaft | Treatment of synthesis gases from a gasification facility |
EP1934311B1 (en) | 2005-10-14 | 2016-07-27 | Shell Internationale Research Maatschappij B.V. | Method for producing synthesis gas or a hydrocarbon product |
US10781807B2 (en) | 2016-08-25 | 2020-09-22 | Dipl. Ing. Ernst Schmitz Gmbh & Co. Kg Maschinen Und Apparatebau | Double membrane for a dust pump |
US10914299B2 (en) | 2016-01-27 | 2021-02-09 | Dipl. Ing. Ernst Schmitz Gmbh & Co. Kg Maschinen Und Apparatebau | Diaphragm pump comprising dust suction from below |
US11215174B2 (en) | 2016-08-25 | 2022-01-04 | Dipl. Ing. Ernst Schmitz Gmbh & Co. Kg Maschinen Und Apparatebau | Diaphragm pump having a porous, arched aluminum filter |
US11590440B2 (en) | 2016-08-25 | 2023-02-28 | Dipl. Ing. Ernst Schmitz GmbH & Co. KG Maschinen and Apparatebau | Production of a porous aluminum filter for a diaphragm pump |
Families Citing this family (35)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2947222C2 (en) * | 1979-11-23 | 1987-05-07 | Carbon Gas Technologie GmbH, 4030 Ratingen | Device for gasification of solid, dusty to lumpy carbonaceous fuels and their use |
DD206309A3 (en) * | 1981-07-17 | 1984-01-18 | Kretschmer Horst | METHOD FOR REGULATING MASS STRUCTURES |
CA1208258A (en) * | 1982-06-23 | 1986-07-22 | Bernardus H. Mink | Process for conveying a particulate solid fuel |
JPH0633370B2 (en) * | 1984-11-09 | 1994-05-02 | 株式会社日立製作所 | Coal gasification power plant |
JPS61254695A (en) * | 1985-05-07 | 1986-11-12 | Mitsubishi Heavy Ind Ltd | Feeding of coal and char to oxygen blow coal gasification furnace |
JPH047174Y2 (en) * | 1985-08-09 | 1992-02-26 | ||
DE3701399A1 (en) * | 1986-02-24 | 1987-08-27 | Freiberg Brennstoffinst | Method and device for determining rheological characteristic values of fine bulk goods |
DE3809851A1 (en) * | 1988-03-24 | 1989-10-05 | Krupp Koppers Gmbh | METHOD FOR CONVEYING A FINE-GRAINED TO DUST-SHAPED FUEL IN A GASIFICATION REACTOR UNDER INCREASED PRESSURE |
DE3813357A1 (en) * | 1988-04-21 | 1989-11-02 | Krupp Koppers Gmbh | DEVICE FOR THE GASIFICATION OF FINE-GRAIN TO DUST-SHAPED FUELS |
DE4004874A1 (en) * | 1990-02-16 | 1991-08-29 | Krupp Koppers Gmbh | METHOD FOR OPERATING A PLANT FOR GASIFYING SOLID FUELS |
DE4037490A1 (en) * | 1990-11-26 | 1991-05-29 | Deutsches Brennstoffinst | Disposal of plastic material made of phenol:formaldehyde condensate - by gasifying and/or carbonising, comminuting and then mixing with crude or dry coal |
DE4109063C2 (en) * | 1991-03-20 | 1993-12-23 | Noell Dbi Energie Entsorgung | Process for the simultaneous recycling of lumpy and flowable combustible waste materials and residues |
DE4125520C2 (en) * | 1991-08-01 | 1998-11-12 | Schwarze Pumpe Energiewerke Ag | Process for the gasification of solid and liquid waste |
DE4420449C5 (en) * | 1994-02-15 | 2004-02-05 | Thermoselect Ag | Process for storing heterogeneous waste |
DE4435349C1 (en) * | 1994-09-21 | 1996-05-02 | Noell En Und Entsorgungstechni | Destruction of pollutants and gasifying of waste in a fluidised bed |
DE19536383C2 (en) * | 1995-09-29 | 2001-09-13 | Krc Umwelttechnik Gmbh | Method and device for the gasification of low calorific value fuels |
DE19609721C2 (en) * | 1996-03-13 | 2002-09-12 | Noell Krc Energie & Umwelt | Process for the energetic utilization of residual and waste materials as well as low calorific fuels in a steam power plant |
DE19642161C2 (en) * | 1996-10-12 | 2001-10-11 | Krc Umwelttechnik Gmbh | Process for the environmentally friendly recycling of residual waste |
KR101617899B1 (en) * | 2008-03-27 | 2016-05-03 | 티센크루프 인더스트리얼 솔루션스 아게 | Device for producing synthesis gas with a gasification reactor and connecting quenching chamber |
DE102008035294B4 (en) * | 2008-07-29 | 2017-03-02 | Siemens Aktiengesellschaft | Multi-stage dust dosing system for high pressures by means of locks |
DE102009006384A1 (en) * | 2009-01-28 | 2010-08-19 | Uhde Gmbh | Method for supplying an entrainment gasification reactor with fuel from a reservoir |
DE102009048931B4 (en) | 2009-10-10 | 2014-06-18 | Linde Ag | Dosing system, dense phase conveying system and method for feeding dusty bulk material |
DE102009048961B4 (en) | 2009-10-10 | 2014-04-24 | Linde Ag | Dosing device, dense phase conveying system and method for feeding dusty bulk material |
JP5675297B2 (en) * | 2010-11-22 | 2015-02-25 | 三菱重工業株式会社 | Gasification facilities and coal gasification combined power generation facilities |
DE102012217890B4 (en) | 2012-10-01 | 2015-02-12 | Siemens Aktiengesellschaft | Combination of pressure charging and metering for continuous delivery of fuel dust into an entrainment gasification reactor over long distances |
DE102013203739A1 (en) | 2013-03-05 | 2014-09-11 | Siemens Aktiengesellschaft | Combination of pressure charging and metering for continuous delivery of fuel dust into an entrainment gasification reactor over long distances |
DE102013216948B4 (en) | 2013-08-26 | 2015-12-03 | Siemens Aktiengesellschaft | Device for measuring pressure and differential pressure in dust conveyor lines |
DE102013224037A1 (en) | 2013-11-25 | 2015-05-28 | Siemens Aktiengesellschaft | Preparation and conditioning of synthesis crude gases |
DE102014202236A1 (en) | 2014-02-07 | 2015-08-13 | Siemens Aktiengesellschaft | Auxiliary gas element for conveying dust streams |
DE102014205823A1 (en) | 2014-03-28 | 2015-10-01 | Siemens Aktiengesellschaft | Device for pneumatically conveying fuel dust into an air flow gasifier |
DE102015119635B4 (en) | 2015-11-13 | 2019-10-17 | Choren Industrietechnik GmbH | Pressure vessel with internals |
DE202015106150U1 (en) | 2015-11-13 | 2015-12-07 | Choren Industrietechnik GmbH | Pressure vessel with internals |
CN111690441B (en) * | 2019-03-13 | 2021-02-26 | 中国石化工程建设有限公司 | System for gasifier firing and method for gasifier firing |
AU2020375079A1 (en) | 2019-10-31 | 2022-05-19 | Basf Se | Method and system for operating a descending moving bed reactor with flowable granular material |
JP2023085579A (en) * | 2020-04-30 | 2023-06-21 | 株式会社ジャパンブルーエナジー | Biomass gasification device |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR1110897A (en) * | 1953-08-27 | 1956-02-17 | Union Carbide & Carbon Corp | Pulverized coal pressure feeding and conveying apparatus |
DE1189226B (en) * | 1961-10-11 | 1965-03-18 | Koppers Gmbh Heinrich | Process for transferring a finely divided solid fuel from a room at normal pressure into a room under increased pressure |
BE638732A (en) * | 1962-10-24 | |||
JPS50136301A (en) * | 1974-04-18 | 1975-10-29 | ||
DE2434526C2 (en) * | 1974-07-18 | 1983-01-13 | Shell Internationale Research Maatschappij B.V., 2501 's-Gravenhage | Method and device for introducing finely divided solid fuel into a gasification chamber under increased pressure |
NL7514128A (en) * | 1975-12-04 | 1977-06-07 | Shell Int Research | METHOD AND EQUIPMENT FOR PARTIAL COMBUSTION OF CARBON POWDER. |
US4057402A (en) * | 1976-06-28 | 1977-11-08 | Institute Of Gas Technology | Coal pretreatment and gasification process |
-
1977
- 1977-09-19 DD DD20106477A patent/DD147188A3/en unknown
-
1978
- 1978-07-15 DE DE19782831208 patent/DE2831208A1/en active Granted
- 1978-07-19 AT AT524278A patent/AT378199B/en not_active IP Right Cessation
- 1978-08-03 GR GR56920A patent/GR65885B/el unknown
- 1978-08-09 FR FR7823530A patent/FR2403377A1/en active Granted
- 1978-08-21 SU SU787770281A patent/SU1167194A1/en active
- 1978-08-28 CS CS559678A patent/CS222955B1/en unknown
- 1978-09-07 TR TR2075478A patent/TR20754A/en unknown
- 1978-09-15 AU AU39897/78A patent/AU520077B2/en not_active Expired
- 1978-09-18 GB GB7837199A patent/GB2004993B/en not_active Expired
- 1978-09-18 YU YU220078A patent/YU220078A/en unknown
- 1978-09-19 JP JP11418278A patent/JPS594476B2/en not_active Expired
- 1978-09-19 IN IN1028/CAL/78A patent/IN150296B/en unknown
- 1978-09-19 HU HUBE001329 patent/HU180684B/en unknown
- 1978-09-19 PL PL20968878A patent/PL111707B1/en unknown
-
1982
- 1982-05-25 YU YU111182A patent/YU42038B/en unknown
Cited By (23)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7842108B2 (en) * | 2005-08-24 | 2010-11-30 | Siemens Aktiengesellschaft | Gasification method and device for producing synthesis gases by partial oxidation of fuels containing ash at elevated pressure and with quench-cooling of the crude gas |
AU2006201147B2 (en) * | 2005-08-24 | 2011-01-27 | Siemens Energy Global GmbH & Co. KG | Gasification method and device for producing synthesis gases by partial oxidation of fuels containing ash at elevated pressure and with quench-cooling of the crude gas |
CN1919980B (en) * | 2005-08-24 | 2012-07-04 | 未来能源有限公司 | Gasification method and device for producing synthesis gases by partial oxidation of fuels containing ash at elevated pressure and with quench-cooling of the crude gas |
US7744665B2 (en) * | 2005-09-03 | 2010-06-29 | Siemens Aktiengesellschaft | Gasification method and device for producing synthesis gases by partial oxidation of fuels containing ash at elevated pressure with partial quenching of the crude gas and waste heat recovery |
CN1923975B (en) * | 2005-09-03 | 2012-12-26 | 未来能源有限公司 | Gasification method and device for producing synthesis gas |
AU2006201146B2 (en) * | 2005-09-03 | 2011-05-26 | Siemens Energy Global GmbH & Co. KG | Gasification method and device for producing synthesis gases by partial oxidation of fuels containing ash at elevated pressure with partial quenching of the crude gas and waste heat recovery |
US8118890B2 (en) * | 2005-09-09 | 2012-02-21 | Siemens Aktiengesellschaft | Method and device for producing synthesis gases by partial oxidation of slurries prepared from fuels containing ash and full quenching of the crude gas |
AU2006201145B2 (en) * | 2005-09-09 | 2010-07-08 | Manfred Schingnitz | Method and device for producing synthesis gases by partial oxidation of slurries prepared from fuels containing ash and full quenching of the crude gas |
CN1945121B (en) * | 2005-10-04 | 2012-04-04 | 西门子燃料气化技术有限责任两合公司 | Method and device for the regulated feed of pulverized fuel to an entrained flow gasifier |
AU2006201143B2 (en) * | 2005-10-04 | 2011-04-14 | Siemens Energy Global GmbH & Co. KG | Method and device for the regulated feed of pulverized fuel to a flue stream gasifier |
US7607398B2 (en) | 2005-10-04 | 2009-10-27 | Siemens Aktiengesellschaft | Method and device for the regulated feed of pulverized fuel to an entrained flow gasifier |
CN1944593B (en) * | 2005-10-07 | 2011-11-23 | 未来能源有限公司 | Method and device for high-capacity entrained flow gasifier |
AU2006201142B2 (en) * | 2005-10-07 | 2011-07-21 | Siemens Energy Global GmbH & Co. KG | Method and device for high-capacity entrained flow gasifier |
EP1934311B2 (en) † | 2005-10-14 | 2020-07-15 | Air Products And Chemicals, Inc. | Method for producing a hydrocarbon product |
EP1934311B1 (en) | 2005-10-14 | 2016-07-27 | Shell Internationale Research Maatschappij B.V. | Method for producing synthesis gas or a hydrocarbon product |
AU2006203439B2 (en) * | 2006-08-09 | 2012-05-03 | Siemens Energy Global GmbH & Co. KG | Method and device for high-capacity entrained flow gasifier |
US8303673B2 (en) * | 2006-08-25 | 2012-11-06 | Siemens Aktiengesellschaft | Method and device for a high-capacity entrained flow gasifier |
US8646664B2 (en) | 2008-03-17 | 2014-02-11 | Thyssenkrupp Uhde Gmbh | Method and device for the metered removal of a fine to coarse-grained solid matter or solid matter mixture from a storage container |
US9254469B2 (en) | 2013-11-25 | 2016-02-09 | Siemens Aktiengesellschaft | Treatment of synthesis gases from a gasification facility |
US10914299B2 (en) | 2016-01-27 | 2021-02-09 | Dipl. Ing. Ernst Schmitz Gmbh & Co. Kg Maschinen Und Apparatebau | Diaphragm pump comprising dust suction from below |
US10781807B2 (en) | 2016-08-25 | 2020-09-22 | Dipl. Ing. Ernst Schmitz Gmbh & Co. Kg Maschinen Und Apparatebau | Double membrane for a dust pump |
US11215174B2 (en) | 2016-08-25 | 2022-01-04 | Dipl. Ing. Ernst Schmitz Gmbh & Co. Kg Maschinen Und Apparatebau | Diaphragm pump having a porous, arched aluminum filter |
US11590440B2 (en) | 2016-08-25 | 2023-02-28 | Dipl. Ing. Ernst Schmitz GmbH & Co. KG Maschinen and Apparatebau | Production of a porous aluminum filter for a diaphragm pump |
Also Published As
Publication number | Publication date |
---|---|
YU111182A (en) | 1984-02-29 |
AU520077B2 (en) | 1982-01-14 |
CS222955B1 (en) | 1983-08-26 |
FR2403377A1 (en) | 1979-04-13 |
DE2831208C2 (en) | 1988-01-14 |
AU3989778A (en) | 1980-03-20 |
FR2403377B1 (en) | 1985-01-25 |
PL209688A1 (en) | 1979-06-18 |
GB2004993B (en) | 1982-03-31 |
TR20754A (en) | 1982-06-24 |
SU1167194A1 (en) | 1985-07-15 |
PL111707B1 (en) | 1980-09-30 |
ATA524278A (en) | 1984-11-15 |
AT378199B (en) | 1985-06-25 |
GR65885B (en) | 1980-12-01 |
JPS594476B2 (en) | 1984-01-30 |
YU42038B (en) | 1988-04-30 |
YU220078A (en) | 1982-08-31 |
HU180684B (en) | 1983-04-29 |
DD147188A3 (en) | 1981-03-25 |
IN150296B (en) | 1982-09-04 |
DE2831208A1 (en) | 1979-03-29 |
JPS5499103A (en) | 1979-08-04 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PCNP | Patent ceased through non-payment of renewal fee |