NL170375C - Werkwijze voor het verwijderen van methaan uit een gasmengsel. - Google Patents
Werkwijze voor het verwijderen van methaan uit een gasmengsel.Info
- Publication number
- NL170375C NL170375C NLAANVRAGE7013587,A NL7013587A NL170375C NL 170375 C NL170375 C NL 170375C NL 7013587 A NL7013587 A NL 7013587A NL 170375 C NL170375 C NL 170375C
- Authority
- NL
- Netherlands
- Prior art keywords
- gas mix
- removing methane
- methane
- mix
- gas
- Prior art date
Links
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 title 2
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J35/00—Catalysts, in general, characterised by their form or physical properties
- B01J35/50—Catalysts, in general, characterised by their form or physical properties characterised by their shape or configuration
- B01J35/56—Foraminous structures having flow-through passages or channels, e.g. grids or three-dimensional monoliths
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
- B01D53/86—Catalytic processes
- B01D53/8621—Removing nitrogen compounds
- B01D53/8625—Nitrogen oxides
- B01D53/8628—Processes characterised by a specific catalyst
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/92—Chemical or biological purification of waste gases of engine exhaust gases
- B01D53/94—Chemical or biological purification of waste gases of engine exhaust gases by catalytic processes
- B01D53/9404—Removing only nitrogen compounds
- B01D53/9409—Nitrogen oxides
- B01D53/9413—Processes characterised by a specific catalyst
- B01D53/9418—Processes characterised by a specific catalyst for removing nitrogen oxides by selective catalytic reduction [SCR] using a reducing agent in a lean exhaust gas
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J23/00—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
- B01J23/38—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of noble metals
- B01J23/40—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of noble metals of the platinum group metals
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J23/00—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
- B01J23/38—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of noble metals
- B01J23/40—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of noble metals of the platinum group metals
- B01J23/42—Platinum
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J23/00—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
- B01J23/38—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of noble metals
- B01J23/40—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of noble metals of the platinum group metals
- B01J23/46—Ruthenium, rhodium, osmium or iridium
- B01J23/464—Rhodium
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2251/00—Reactants
- B01D2251/20—Reductants
- B01D2251/208—Hydrocarbons
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2255/00—Catalysts
- B01D2255/10—Noble metals or compounds thereof
- B01D2255/102—Platinum group metals
- B01D2255/1021—Platinum
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2255/00—Catalysts
- B01D2255/10—Noble metals or compounds thereof
- B01D2255/102—Platinum group metals
- B01D2255/1025—Rhodium
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J37/00—Processes, in general, for preparing catalysts; Processes, in general, for activation of catalysts
- B01J37/02—Impregnation, coating or precipitation
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J37/00—Processes, in general, for preparing catalysts; Processes, in general, for activation of catalysts
- B01J37/02—Impregnation, coating or precipitation
- B01J37/03—Precipitation; Co-precipitation
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B1/00—Engines characterised by fuel-air mixture compression
- F02B1/02—Engines characterised by fuel-air mixture compression with positive ignition
- F02B1/04—Engines characterised by fuel-air mixture compression with positive ignition with fuel-air mixture admission into cylinder
-
- 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
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Organic Chemistry (AREA)
- Materials Engineering (AREA)
- Environmental & Geological Engineering (AREA)
- Health & Medical Sciences (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Analytical Chemistry (AREA)
- Biomedical Technology (AREA)
- Combustion & Propulsion (AREA)
- Catalysts (AREA)
- Exhaust Gas Treatment By Means Of Catalyst (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB4554569 | 1969-09-16 |
Publications (3)
Publication Number | Publication Date |
---|---|
NL7013587A NL7013587A (xx) | 1971-03-18 |
NL170375B NL170375B (nl) | 1982-06-01 |
NL170375C true NL170375C (nl) | 1982-11-01 |
Family
ID=10437617
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
NLAANVRAGE7013587,A NL170375C (nl) | 1969-09-16 | 1970-09-15 | Werkwijze voor het verwijderen van methaan uit een gasmengsel. |
NLAANVRAGE7013586,A NL170809C (nl) | 1969-09-16 | 1970-09-15 | Werkwijze voor het verwijderen van een stikstofoxyde uit een gasmengsel met behulp van een katalysator, alsmede de daarbij toe te passen katalysator. |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
NLAANVRAGE7013586,A NL170809C (nl) | 1969-09-16 | 1970-09-15 | Werkwijze voor het verwijderen van een stikstofoxyde uit een gasmengsel met behulp van een katalysator, alsmede de daarbij toe te passen katalysator. |
Country Status (11)
Country | Link |
---|---|
US (2) | US3806582A (xx) |
JP (2) | JPS5319554B1 (xx) |
BE (2) | BE756150A (xx) |
CA (2) | CA960017A (xx) |
DE (2) | DE2045488C3 (xx) |
ES (2) | ES383628A1 (xx) |
FR (2) | FR2061384A5 (xx) |
GB (1) | GB1330841A (xx) |
NL (2) | NL170375C (xx) |
PL (2) | PL81040B1 (xx) |
SU (3) | SU402198A3 (xx) |
Families Citing this family (52)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
BE756151A (fr) * | 1969-09-16 | 1971-02-15 | Johnson Matthey & Cy Ltd | Perfectionnements relatifs a la catalyse |
US4053556A (en) * | 1971-06-16 | 1977-10-11 | Johnson, Matthey & Co., Limited | Catalysis |
US4025606A (en) * | 1971-06-25 | 1977-05-24 | Johnson Matthey & Co., Limited | Catalysis |
GB1417544A (en) * | 1971-11-22 | 1975-12-10 | Johnson Matthey Co Ltd | Catalysts containing platinum and rhodium |
IT971446B (it) * | 1971-12-16 | 1974-04-30 | Corning Glass Works | Materiale per la pulizia o il controllo di gas di rifiuto gas di scarico di motori a combustio ne interna e simili |
US4076792A (en) * | 1972-04-12 | 1978-02-28 | Corning Glass Works | Catalyst systems for the reduction of the oxides of nitrogen |
JPS5338715B2 (xx) * | 1972-04-15 | 1978-10-17 | ||
GB1383896A (en) * | 1972-06-14 | 1974-02-12 | Grace W R & Co | Process of removing noxious components from exhaust gases with the aid of a catalyst |
CA1001147A (en) * | 1972-11-30 | 1976-12-07 | Takashi Ohara | Method for the production of exhaust and waste gases purifying catalysts |
DE2304831C3 (de) * | 1973-02-01 | 1978-06-22 | Kali-Chemie Ag, 3000 Hannover | Verfahren zur katalytischen Entfernung von Kohlenmonoxid, unverbrannten Kohlenwasserstoffen und Stickoxiden aus Autoabgasen |
JPS5057946A (xx) * | 1973-07-17 | 1975-05-20 | ||
US4198379A (en) * | 1974-01-11 | 1980-04-15 | James G Russell | Nitrogen oxide pollution abatement using catalytic combustion |
JPS51110491A (en) * | 1975-03-26 | 1976-09-30 | Ube Industries | Nox kangenjokayoshokubai |
JPS6038179B2 (ja) * | 1977-08-26 | 1985-08-30 | 松下電器産業株式会社 | 排ガス浄化用触媒体 |
JPS5824174B2 (ja) * | 1977-08-31 | 1983-05-19 | 三菱重工業株式会社 | 排ガス処理法 |
US4257223A (en) * | 1978-05-08 | 1981-03-24 | Johnson, Matthey & Co., Limited | Engines |
GB2024646B (en) * | 1978-07-10 | 1983-05-05 | Johnson Matthey Co Ltd | Catalytic oxidation of smoke in exhaust gases |
US4199435A (en) * | 1978-12-04 | 1980-04-22 | Chevron Research Company | NOx Control in cracking catalyst regeneration |
US4290878A (en) * | 1978-12-08 | 1981-09-22 | Chevron Research Company | NOx control in platinum-promoted complete combustion cracking catalyst regeneration |
DE3020630A1 (de) * | 1980-03-10 | 1981-10-01 | Bridgestone Tire Co. Ltd., Tokyo | Vorrichtung zum reinigen von abgasen |
DE3348099C2 (de) * | 1983-10-03 | 1994-10-20 | Wahlco Power Products Inc | Vorrichtung zum Vorwärmen eines Verbrennungsluftstromes |
DE3335917C3 (de) * | 1983-10-03 | 1997-03-13 | Wahlco Power Products Inc | Vorrichtung zum regenerativen Vorwärmen eines Verbrennungsluftstromes mit einem heißen NO¶x¶-haltigen Rauchgasstrom und zum Vermindern des in den Rauchgasen enthaltenen NO¶x¶ |
US4950476A (en) * | 1986-11-06 | 1990-08-21 | Ford Motor Company | Method of catalytically oxidizing alcohol vapor accompanied by varying amounts of excess oxygen |
US5254797A (en) * | 1989-06-07 | 1993-10-19 | Ngk Insulators, Ltd. | Method of treating exhaust gas |
US5010051A (en) * | 1989-11-08 | 1991-04-23 | Engelhard Corporation | Staged three-way conversion catalyst and method of using the same |
DE69127713T2 (de) * | 1990-01-12 | 1998-01-29 | Ngk Spark Plug Co | Behandlung von Abgasen, die Silikon- und/oder Phosphorverbindungen enthalten |
JP2897367B2 (ja) * | 1990-01-12 | 1999-05-31 | 日本特殊陶業株式会社 | 被毒防止体、被毒防止層付触媒及び排気ガス浄化装置 |
US5212142A (en) * | 1991-11-04 | 1993-05-18 | Engelhard Corporation | High performance thermally stable catalyst |
US6080377A (en) * | 1995-04-27 | 2000-06-27 | Engelhard Corporation | Method of abating NOx and a catalytic material therefor |
US6471924B1 (en) | 1995-07-12 | 2002-10-29 | Engelhard Corporation | Method and apparatus for NOx abatement in lean gaseous streams |
US5874057A (en) * | 1995-07-12 | 1999-02-23 | Engelhard Corporation | Lean NOx catalyst/trap method |
US5743929A (en) * | 1995-08-23 | 1998-04-28 | The Boc Group, Inc. | Process for the production of high purity carbon dioxide |
US5849256A (en) * | 1996-04-26 | 1998-12-15 | Engelhard Corporation | Method for oxidizing carbon monoxide in a gas stream containing oxidizable sulphur compounds |
US5792436A (en) * | 1996-05-13 | 1998-08-11 | Engelhard Corporation | Method for using a regenerable catalyzed trap |
US6037183A (en) * | 1996-12-20 | 2000-03-14 | Corning Incorporated | Automotive hydrocarbon sensor system |
US6242263B1 (en) | 1996-12-20 | 2001-06-05 | Corning Incorporated | Automotive hydrocarbon sensor |
JP3903598B2 (ja) * | 1997-09-24 | 2007-04-11 | トヨタ自動車株式会社 | 排ガス浄化用触媒およびその製造方法 |
US6344173B1 (en) | 1998-12-07 | 2002-02-05 | Corning Incorporated | Automotive hydrocarbon sensor |
US6497848B1 (en) | 1999-04-02 | 2002-12-24 | Engelhard Corporation | Catalytic trap with potassium component and method of using the same |
DE10006103A1 (de) * | 2000-02-11 | 2001-08-16 | Krupp Uhde Gmbh | Katalysator zum Abbau von N¶2¶O, dessen Verwendung bei der Salpetersäureproduktion sowie Verfahren zu seiner Herstellung |
JP4573320B2 (ja) * | 2000-09-08 | 2010-11-04 | 昭和電工株式会社 | 亜酸化窒素分解触媒、その製造方法及び亜酸化窒素の分解方法 |
US7803201B2 (en) | 2005-02-09 | 2010-09-28 | Headwaters Technology Innovation, Llc | Organically complexed nanocatalysts for improving combustion properties of fuels and fuel compositions incorporating such catalysts |
US7856992B2 (en) * | 2005-02-09 | 2010-12-28 | Headwaters Technology Innovation, Llc | Tobacco catalyst and methods for reducing the amount of undesirable small molecules in tobacco smoke |
US7357903B2 (en) * | 2005-04-12 | 2008-04-15 | Headwaters Heavy Oil, Llc | Method for reducing NOx during combustion of coal in a burner |
US8115373B2 (en) | 2005-07-06 | 2012-02-14 | Rochester Institute Of Technology | Self-regenerating particulate trap systems for emissions and methods thereof |
US20070078053A1 (en) * | 2005-09-30 | 2007-04-05 | U.S.A. As Represented By The Administrator Of The National Aeronautics And Space Administration | Catalyst for decomposition of nitrogen oxides |
US7758660B2 (en) * | 2006-02-09 | 2010-07-20 | Headwaters Technology Innovation, Llc | Crystalline nanocatalysts for improving combustion properties of fuels and fuel compositions incorporating such catalysts |
DE102009006404B3 (de) * | 2009-01-28 | 2010-08-26 | Süd-Chemie AG | Diesel-Oxidationskatalysator mit guter Tieftemperaturaktivität |
GB201110850D0 (en) * | 2011-03-04 | 2011-08-10 | Johnson Matthey Plc | Catalyst and mehtod of preparation |
DE102015005238A1 (de) | 2015-04-24 | 2016-10-27 | Wolfgang Hölderich | Herstellung von Lactamen durch Beckmann-Umlagerung von Oximen |
CN105617809B (zh) * | 2015-12-31 | 2017-09-22 | 淄博广通化工有限责任公司 | 锆英砂沸腾氯化装置排放的尾气回收利用方法 |
CN105540661B (zh) * | 2015-12-31 | 2017-11-10 | 淄博广通化工有限责任公司 | 锆英砂沸腾氯化尾气的回收利用装置 |
Family Cites Families (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
BE566487A (xx) * | ||||
GB411655A (en) * | 1933-03-28 | 1934-06-14 | Richard Blum | Improvements in and relating to methods of and apparatus for purifying the exhaust gases of internal combustion engines |
US3118727A (en) * | 1956-10-12 | 1964-01-21 | Engelhart Ind Inc | Method of removing nitrogen oxides from gases |
GB883945A (en) * | 1957-04-05 | 1961-12-06 | Engelhard Ind Inc | A process for the removal of free oxygen and the catalytic reduction of oxides of nitrogen in waste gases |
US3056646A (en) * | 1959-07-14 | 1962-10-02 | Engelhard Ind Inc | Method of effecting the catalytic contact of gases containing oxygen and methane |
US3161605A (en) * | 1961-03-31 | 1964-12-15 | Du Pont | Preparation of supported catalysts |
US3259453A (en) * | 1962-07-19 | 1966-07-05 | Du Pont | Method and apparatus for treating exhaust gases of internal combustion engines |
US3245920A (en) * | 1962-08-17 | 1966-04-12 | Engelhard Ind Inc | Catalyst composition consisting of a noble metal on alumina |
US3255027A (en) * | 1962-09-07 | 1966-06-07 | Du Pont | Refractory product and process |
US3565830A (en) * | 1963-02-07 | 1971-02-23 | Engelhard Min & Chem | Coated film of catalytically active oxide on a refractory support |
US3467492A (en) * | 1964-11-06 | 1969-09-16 | Chemical Construction Corp | Elimination of nitrogen oxides from gas streams |
FR1479602A (fr) * | 1965-04-22 | 1967-05-05 | Schneider & Co | Support de catalyseur |
US3454355A (en) * | 1966-05-20 | 1969-07-08 | Chevron Res | Method of removing sulfur dioxide and nitrogen oxides from gases |
US3554929A (en) * | 1967-06-08 | 1971-01-12 | Du Pont | High surface area alumina coatings on catalyst supports |
US3425803A (en) * | 1967-09-01 | 1969-02-04 | Engelhard Ind Inc | Nitric acid tail gas purification |
BE756151A (fr) * | 1969-09-16 | 1971-02-15 | Johnson Matthey & Cy Ltd | Perfectionnements relatifs a la catalyse |
-
0
- BE BE756151D patent/BE756151A/xx not_active IP Right Cessation
- BE BE756150D patent/BE756150A/xx not_active IP Right Cessation
-
1969
- 1969-09-16 GB GB4554569A patent/GB1330841A/en not_active Expired
-
1970
- 1970-09-09 CA CA092,706A patent/CA960017A/en not_active Expired
- 1970-09-09 CA CA092,707A patent/CA984125A/en not_active Expired
- 1970-09-11 US US00071329A patent/US3806582A/en not_active Expired - Lifetime
- 1970-09-14 FR FR7033255A patent/FR2061384A5/fr not_active Expired
- 1970-09-14 FR FR7033256A patent/FR2061385A5/fr not_active Expired
- 1970-09-14 ES ES383628A patent/ES383628A1/es not_active Expired
- 1970-09-14 ES ES383629A patent/ES383629A1/es not_active Expired
- 1970-09-15 PL PL1970143213A patent/PL81040B1/pl unknown
- 1970-09-15 NL NLAANVRAGE7013587,A patent/NL170375C/xx not_active IP Right Cessation
- 1970-09-15 SU SU1476805A patent/SU402198A3/ru active
- 1970-09-15 PL PL1970147058A patent/PL76451B1/pl unknown
- 1970-09-15 DE DE2045488A patent/DE2045488C3/de not_active Expired
- 1970-09-15 SU SU1476804A patent/SU375830A3/ru active
- 1970-09-15 DE DE2045487A patent/DE2045487C2/de not_active Expired
- 1970-09-15 NL NLAANVRAGE7013586,A patent/NL170809C/xx not_active IP Right Cessation
- 1970-09-16 JP JP8088970A patent/JPS5319554B1/ja active Pending
-
1971
- 1971-02-10 SU SU1619887A patent/SU1069606A3/ru active
-
1973
- 1973-02-24 JP JP2259373A patent/JPS5621645A/ja active Pending
-
1979
- 1979-08-01 US US06/062,903 patent/US4289737A/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
BE756150A (fr) | 1971-02-15 |
PL76451B1 (xx) | 1975-02-28 |
NL170809C (nl) | 1983-01-03 |
NL170809B (nl) | 1982-08-02 |
SU1069606A3 (ru) | 1984-01-23 |
DE2045487A1 (de) | 1971-03-25 |
NL170375B (nl) | 1982-06-01 |
SU402198A3 (xx) | 1973-10-12 |
US3806582A (en) | 1974-04-23 |
ES383628A1 (es) | 1973-05-01 |
US4289737A (en) | 1981-09-15 |
DE2045488B2 (de) | 1978-01-26 |
NL7013586A (xx) | 1971-03-18 |
BE756151A (fr) | 1971-02-15 |
SU375830A3 (xx) | 1973-03-23 |
DE2045488A1 (de) | 1971-04-08 |
DE2045487C2 (de) | 1985-05-23 |
FR2061384A5 (xx) | 1971-06-18 |
NL7013587A (xx) | 1971-03-18 |
ES383629A1 (es) | 1973-05-01 |
GB1330841A (en) | 1973-09-19 |
JPS5319554B1 (xx) | 1978-06-21 |
DE2045488C3 (de) | 1978-10-05 |
JPS5621645A (en) | 1981-02-28 |
CA984125A (en) | 1976-02-24 |
CA960017A (en) | 1974-12-31 |
PL81040B1 (xx) | 1975-08-30 |
FR2061385A5 (xx) | 1971-06-18 |
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