SE440856B - Sett att filtrera bort fasta fororeningar ur gaser och anordning for genomforande derav - Google Patents
Sett att filtrera bort fasta fororeningar ur gaser och anordning for genomforande deravInfo
- Publication number
- SE440856B SE440856B SE8007413A SE8007413A SE440856B SE 440856 B SE440856 B SE 440856B SE 8007413 A SE8007413 A SE 8007413A SE 8007413 A SE8007413 A SE 8007413A SE 440856 B SE440856 B SE 440856B
- Authority
- SE
- Sweden
- Prior art keywords
- liquid
- filter
- gas
- liquid film
- particulate
- Prior art date
Links
- 239000003344 environmental pollutant Substances 0.000 title claims abstract description 17
- 239000007789 gas Substances 0.000 title description 32
- 239000007787 solid Substances 0.000 title description 17
- 239000007788 liquid Substances 0.000 claims abstract description 100
- 239000011159 matrix material Substances 0.000 claims abstract description 32
- 230000004888 barrier function Effects 0.000 claims abstract description 27
- 231100000719 pollutant Toxicity 0.000 claims abstract description 16
- 239000000356 contaminant Substances 0.000 claims abstract description 15
- 238000001914 filtration Methods 0.000 claims abstract description 14
- 229920001296 polysiloxane Polymers 0.000 claims abstract description 11
- 238000000034 method Methods 0.000 claims abstract description 6
- 239000002245 particle Substances 0.000 claims description 32
- NBVXSUQYWXRMNV-UHFFFAOYSA-N fluoromethane Chemical compound FC NBVXSUQYWXRMNV-UHFFFAOYSA-N 0.000 claims description 10
- 239000012535 impurity Substances 0.000 claims description 4
- 238000011144 upstream manufacturing Methods 0.000 claims description 3
- 238000007599 discharging Methods 0.000 claims 1
- 238000002474 experimental method Methods 0.000 description 7
- 229920005654 Sephadex Polymers 0.000 description 6
- 239000012507 Sephadex™ Substances 0.000 description 6
- 230000008901 benefit Effects 0.000 description 6
- 239000004744 fabric Substances 0.000 description 6
- 239000012530 fluid Substances 0.000 description 5
- 229910052751 metal Inorganic materials 0.000 description 4
- 239000002184 metal Substances 0.000 description 4
- 239000011324 bead Substances 0.000 description 3
- 238000013461 design Methods 0.000 description 3
- 239000013618 particulate matter Substances 0.000 description 3
- 239000004033 plastic Substances 0.000 description 3
- 229920003023 plastic Polymers 0.000 description 3
- 239000000843 powder Substances 0.000 description 3
- 230000002285 radioactive effect Effects 0.000 description 3
- 239000004677 Nylon Substances 0.000 description 2
- 150000001335 aliphatic alkanes Chemical class 0.000 description 2
- 150000001924 cycloalkanes Chemical class 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 150000004676 glycans Chemical class 0.000 description 2
- 239000004009 herbicide Substances 0.000 description 2
- -1 heterocyclic amines Chemical class 0.000 description 2
- 239000003550 marker Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 229920001778 nylon Polymers 0.000 description 2
- 229920001282 polysaccharide Polymers 0.000 description 2
- 239000005017 polysaccharide Substances 0.000 description 2
- 230000029058 respiratory gaseous exchange Effects 0.000 description 2
- 230000000717 retained effect Effects 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- UVWPNDVAQBNQBG-UHFFFAOYSA-N 1,1,1,2,2,3,3,4,4,5,5,6,6,7,7,8,8,9,9,9-icosafluorononane Chemical compound FC(F)(F)C(F)(F)C(F)(F)C(F)(F)C(F)(F)C(F)(F)C(F)(F)C(F)(F)C(F)(F)F UVWPNDVAQBNQBG-UHFFFAOYSA-N 0.000 description 1
- LWRNQOBXRHWPGE-UHFFFAOYSA-N 1,1,2,2,3,3,4,4,4a,5,5,6,6,7,7,8,8a-heptadecafluoro-8-(trifluoromethyl)naphthalene Chemical compound FC1(F)C(F)(F)C(F)(F)C(F)(F)C2(F)C(C(F)(F)F)(F)C(F)(F)C(F)(F)C(F)(F)C21F LWRNQOBXRHWPGE-UHFFFAOYSA-N 0.000 description 1
- UEOZRAZSBQVQKG-UHFFFAOYSA-N 2,2,3,3,4,4,5,5-octafluorooxolane Chemical compound FC1(F)OC(F)(F)C(F)(F)C1(F)F UEOZRAZSBQVQKG-UHFFFAOYSA-N 0.000 description 1
- CJFUEPJVIFJOOU-UHFFFAOYSA-N 2-perfluorobutyltetrahydrofuran Chemical compound FC(F)(F)C(F)(F)C(F)(F)C(F)(F)C1CCCO1 CJFUEPJVIFJOOU-UHFFFAOYSA-N 0.000 description 1
- 241000796533 Arna Species 0.000 description 1
- 206010003497 Asphyxia Diseases 0.000 description 1
- 241000894006 Bacteria Species 0.000 description 1
- 239000004215 Carbon black (E152) Substances 0.000 description 1
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 1
- MQIUGAXCHLFZKX-UHFFFAOYSA-N Di-n-octyl phthalate Natural products CCCCCCCCOC(=O)C1=CC=CC=C1C(=O)OCCCCCCCC MQIUGAXCHLFZKX-UHFFFAOYSA-N 0.000 description 1
- 239000004819 Drying adhesive Substances 0.000 description 1
- KRHYYFGTRYWZRS-UHFFFAOYSA-M Fluoride anion Chemical compound [F-] KRHYYFGTRYWZRS-UHFFFAOYSA-M 0.000 description 1
- 241000446313 Lamella Species 0.000 description 1
- 241000124008 Mammalia Species 0.000 description 1
- VVQNEPGJFQJSBK-UHFFFAOYSA-N Methyl methacrylate Chemical compound COC(=O)C(C)=C VVQNEPGJFQJSBK-UHFFFAOYSA-N 0.000 description 1
- 229920001774 Perfluoroether Polymers 0.000 description 1
- 229920005372 Plexiglas® Polymers 0.000 description 1
- 239000004809 Teflon Substances 0.000 description 1
- 229920006362 Teflon® Polymers 0.000 description 1
- 230000002745 absorbent Effects 0.000 description 1
- 239000002250 absorbent Substances 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 239000003708 ampul Substances 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- BJQHLKABXJIVAM-UHFFFAOYSA-N bis(2-ethylhexyl) phthalate Chemical compound CCCCC(CC)COC(=O)C1=CC=CC=C1C(=O)OCC(CC)CCCC BJQHLKABXJIVAM-UHFFFAOYSA-N 0.000 description 1
- 239000012159 carrier gas Substances 0.000 description 1
- 231100000481 chemical toxicant Toxicity 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 239000004205 dimethyl polysiloxane Substances 0.000 description 1
- 235000013870 dimethyl polysiloxane Nutrition 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000009189 diving Effects 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 239000003546 flue gas Substances 0.000 description 1
- 229910052731 fluorine Inorganic materials 0.000 description 1
- 125000001153 fluoro group Chemical group F* 0.000 description 1
- 239000003365 glass fiber Substances 0.000 description 1
- 231100001261 hazardous Toxicity 0.000 description 1
- 230000002363 herbicidal effect Effects 0.000 description 1
- 150000002391 heterocyclic compounds Chemical class 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
- 230000000415 inactivating effect Effects 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 239000002917 insecticide Substances 0.000 description 1
- 231100000566 intoxication Toxicity 0.000 description 1
- 230000035987 intoxication Effects 0.000 description 1
- 230000004199 lung function Effects 0.000 description 1
- 238000011089 mechanical engineering Methods 0.000 description 1
- 239000003595 mist Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- UJMWVICAENGCRF-UHFFFAOYSA-N oxygen difluoride Chemical class FOF UJMWVICAENGCRF-UHFFFAOYSA-N 0.000 description 1
- 230000037361 pathway Effects 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 229960004624 perflexane Drugs 0.000 description 1
- WTWWXOGTJWMJHI-UHFFFAOYSA-N perflubron Chemical compound FC(F)(F)C(F)(F)C(F)(F)C(F)(F)C(F)(F)C(F)(F)C(F)(F)C(F)(F)Br WTWWXOGTJWMJHI-UHFFFAOYSA-N 0.000 description 1
- 229960001217 perflubron Drugs 0.000 description 1
- 229950011087 perflunafene Drugs 0.000 description 1
- LOQGSOTUHASIHI-UHFFFAOYSA-N perfluoro-1,3-dimethylcyclohexane Chemical compound FC(F)(F)C1(F)C(F)(F)C(F)(F)C(F)(F)C(F)(C(F)(F)F)C1(F)F LOQGSOTUHASIHI-UHFFFAOYSA-N 0.000 description 1
- UWEYRJFJVCLAGH-IJWZVTFUSA-N perfluorodecalin Chemical compound FC1(F)C(F)(F)C(F)(F)C(F)(F)[C@@]2(F)C(F)(F)C(F)(F)C(F)(F)C(F)(F)[C@@]21F UWEYRJFJVCLAGH-IJWZVTFUSA-N 0.000 description 1
- BPHQIXJDBIHMLT-UHFFFAOYSA-N perfluorodecane Chemical compound FC(F)(F)C(F)(F)C(F)(F)C(F)(F)C(F)(F)C(F)(F)C(F)(F)C(F)(F)C(F)(F)C(F)(F)F BPHQIXJDBIHMLT-UHFFFAOYSA-N 0.000 description 1
- ZJIJAJXFLBMLCK-UHFFFAOYSA-N perfluorohexane Chemical compound FC(F)(F)C(F)(F)C(F)(F)C(F)(F)C(F)(F)C(F)(F)F ZJIJAJXFLBMLCK-UHFFFAOYSA-N 0.000 description 1
- YVBBRRALBYAZBM-UHFFFAOYSA-N perfluorooctane Chemical compound FC(F)(F)C(F)(F)C(F)(F)C(F)(F)C(F)(F)C(F)(F)C(F)(F)C(F)(F)F YVBBRRALBYAZBM-UHFFFAOYSA-N 0.000 description 1
- RVZRBWKZFJCCIB-UHFFFAOYSA-N perfluorotributylamine Chemical compound FC(F)(F)C(F)(F)C(F)(F)C(F)(F)N(C(F)(F)C(F)(F)C(F)(F)C(F)(F)F)C(F)(F)C(F)(F)C(F)(F)C(F)(F)F RVZRBWKZFJCCIB-UHFFFAOYSA-N 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 239000002957 persistent organic pollutant Substances 0.000 description 1
- 239000000575 pesticide Substances 0.000 description 1
- 239000000049 pigment Substances 0.000 description 1
- 231100000572 poisoning Toxicity 0.000 description 1
- 230000000607 poisoning effect Effects 0.000 description 1
- 229920000435 poly(dimethylsiloxane) Polymers 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
- 238000009987 spinning Methods 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 239000004094 surface-active agent Substances 0.000 description 1
- 239000003440 toxic substance Substances 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D47/00—Separating dispersed particles from gases, air or vapours by liquid as separating agent
- B01D47/16—Apparatus having rotary means, other than rotatable nozzles, for atomising the cleaning liquid
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62B—DEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
- A62B23/00—Filters for breathing-protection purposes
- A62B23/02—Filters for breathing-protection purposes for respirators
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/24—Particle separators, e.g. dust precipitators, using rigid hollow filter bodies
- B01D46/26—Particle separators, e.g. dust precipitators, using rigid hollow filter bodies rotatable
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D47/00—Separating dispersed particles from gases, air or vapours by liquid as separating agent
- B01D47/02—Separating dispersed particles from gases, air or vapours by liquid as separating agent by passing the gas or air or vapour over or through a liquid bath
- B01D47/022—Separating dispersed particles from gases, air or vapours by liquid as separating agent by passing the gas or air or vapour over or through a liquid bath by using a liquid curtain
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D50/00—Combinations of methods or devices for separating particles from gases or vapours
- B01D50/60—Combinations of devices covered by groups B01D46/00 and B01D47/00
-
- 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
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S55/00—Gas separation
- Y10S55/35—Respirators and register filters
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Filtering Materials (AREA)
- Separation Of Particles Using Liquids (AREA)
- Gas Separation By Absorption (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US06/092,733 US4304230A (en) | 1979-11-09 | 1979-11-09 | Liquid barrier filter and method of operation |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| SE8007413L SE8007413L (sv) | 1981-05-10 |
| SE440856B true SE440856B (sv) | 1985-08-26 |
Family
ID=22234839
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SE8007413A SE440856B (sv) | 1979-11-09 | 1980-10-22 | Sett att filtrera bort fasta fororeningar ur gaser och anordning for genomforande derav |
Country Status (9)
| Country | Link |
|---|---|
| US (1) | US4304230A (enExample) |
| JP (1) | JPS6053648B2 (enExample) |
| BE (1) | BE886032A (enExample) |
| CA (1) | CA1141653A (enExample) |
| DE (1) | DE3040006A1 (enExample) |
| FR (1) | FR2469197A1 (enExample) |
| GB (1) | GB2062488B (enExample) |
| NL (1) | NL8005270A (enExample) |
| SE (1) | SE440856B (enExample) |
Families Citing this family (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4414973A (en) * | 1981-03-10 | 1983-11-15 | U.S.D. Corp. | Respirator face mask |
| US4705033A (en) * | 1984-07-19 | 1987-11-10 | Lockheed Corporation | Humidification face mask |
| JPS61141918A (ja) * | 1984-12-14 | 1986-06-28 | Hitachi Elevator Eng & Serv Co Ltd | 脱臭装置 |
| DE3618511A1 (de) * | 1986-06-02 | 1987-12-23 | Stubinen Utvecklings Ab | Verfahren und vorrichtung zur reinigung von schadstoffhaltigen gasen |
| JPH02106452A (ja) * | 1988-10-14 | 1990-04-18 | Omron Tateisi Electron Co | 電動サイドミラー制御装置 |
| DE3900139A1 (de) * | 1989-01-04 | 1990-07-12 | Sueddeutsche Kuehler Behr | Vorrichtung zum filtern eines einem innenraum eines fahrzeuges zugefuehrten luftstromes |
| JPH02125875U (enExample) * | 1989-03-28 | 1990-10-17 | ||
| US5222488A (en) * | 1991-07-11 | 1993-06-29 | Donaldson Company, Inc. | Respirator air filter cartridge with a replaceable filter element |
| JPH05278571A (ja) * | 1992-03-24 | 1993-10-26 | Han Ivan | 車外バックミラーのワイパー装置 |
| GB2266247B (en) * | 1992-04-16 | 1996-07-24 | Chen Kuo Jen | Gas mask device |
| US6216693B1 (en) * | 1995-01-20 | 2001-04-17 | 3M Innovative Properties Company | Respirator having a compressible press fir filter element |
| US5848592A (en) * | 1995-09-25 | 1998-12-15 | Sibley; Nels B. | Air filter |
| US6375724B1 (en) * | 1997-05-13 | 2002-04-23 | James Kahekili Foti | Humidifilter |
| US5912369A (en) * | 1997-05-16 | 1999-06-15 | Reeves; Malcolm C. | Self-adhesive air filter |
| US6543450B1 (en) * | 1998-09-29 | 2003-04-08 | John T. Flynn | Survival mask |
| US6701925B1 (en) | 2002-04-11 | 2004-03-09 | Todd A. Resnick | Protective hood respirator |
| US7404401B1 (en) * | 2005-06-10 | 2008-07-29 | Marlon Brady | Water respirator filter |
Family Cites Families (21)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1690813A (en) * | 1926-09-24 | 1928-11-06 | Nat Air Filter Company | Air filter |
| US1976401A (en) * | 1933-05-17 | 1934-10-09 | Ilg Electric Ventilating Compa | Air conditioning and filtering device |
| GB569930A (en) * | 1944-09-23 | 1945-06-14 | A E Griffiths Smethwick Ltd | Improvements in or relating to the filtering and conditioning of air |
| DE825083C (de) * | 1950-06-24 | 1951-12-17 | Friedrich Ibershoff | Vorrichtung zum Entfernen von in Luft, Gasen oder Daempfen befindlichen Schwebeteilchn |
| GB820697A (en) * | 1957-03-28 | 1959-09-23 | Carrier Engineering Co Ltd | Improvements in or relating to odour absorption |
| US3116972A (en) * | 1960-05-06 | 1964-01-07 | Sonneborn Chemical And Refinin | Process for the absorption of so3 by substantially parallel films of liquid absorbent |
| US3113007A (en) * | 1961-05-11 | 1963-12-03 | Rosinski Jan | Scavenging of radioactive aerosols |
| US3328941A (en) * | 1966-06-30 | 1967-07-04 | Space Conditioning Inc | Air treating and conditioning apparatus |
| US3710548A (en) * | 1970-10-19 | 1973-01-16 | R Coughlin | Process and device for purifying air |
| CA952441A (en) * | 1970-11-10 | 1974-08-06 | Norman N. Li | Process of separating a gaseous mixture by permeation through a membrane |
| SU363273A1 (ru) * | 1971-04-29 | 1973-06-14 | Авторы изобретени витель | Способ замены фильтрующего материала |
| US3762133A (en) * | 1971-10-15 | 1973-10-02 | Atomic Energy Commission | Process for the separation of components from gas mixtures |
| DE2205600A1 (de) * | 1972-02-07 | 1973-08-16 | Ohlmann Hans Armin | Verfahren und geraet zur luftreinigung |
| JPS4890068A (enExample) * | 1972-03-06 | 1973-11-24 | ||
| US3873281A (en) * | 1974-01-07 | 1975-03-25 | Johns Manville | High energy gas filtration method |
| US3980080A (en) * | 1974-12-23 | 1976-09-14 | Rudolph Muto | Air filtration gas mass |
| JPS5177977A (ja) * | 1974-12-28 | 1976-07-06 | Topy Ind | Shujinsochi |
| US3986851A (en) * | 1975-06-23 | 1976-10-19 | The Harshaw Chemical Company | Filter of polytetrafluoroethylene fibers |
| JPS5276773A (en) * | 1975-12-22 | 1977-06-28 | Matsumura Sekiyu Kenkyusho | Incombustible bond for air filters |
| US4049398A (en) * | 1976-05-28 | 1977-09-20 | Vaseen Vesper A | Separating oxygen from the air by means of dissolving air in a nonmagnetic, inert liquid and then paramagnetically collecting the oxygen from the liquid |
| PL143692B1 (en) * | 1985-01-23 | 1988-03-31 | Politechnika Lodzka | Apparatus for purifying gases by wet process |
-
1979
- 1979-11-09 US US06/092,733 patent/US4304230A/en not_active Expired - Lifetime
-
1980
- 1980-09-17 CA CA000360527A patent/CA1141653A/en not_active Expired
- 1980-09-22 NL NL8005270A patent/NL8005270A/nl unknown
- 1980-09-30 GB GB8031521A patent/GB2062488B/en not_active Expired
- 1980-10-22 SE SE8007413A patent/SE440856B/sv not_active IP Right Cessation
- 1980-10-23 DE DE19803040006 patent/DE3040006A1/de not_active Withdrawn
- 1980-10-30 JP JP55151518A patent/JPS6053648B2/ja not_active Expired
- 1980-11-05 BE BE0/202701A patent/BE886032A/fr not_active IP Right Cessation
- 1980-11-07 FR FR8023841A patent/FR2469197A1/fr active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| GB2062488B (en) | 1983-06-08 |
| BE886032A (fr) | 1981-03-02 |
| US4304230A (en) | 1981-12-08 |
| SE8007413L (sv) | 1981-05-10 |
| CA1141653A (en) | 1983-02-22 |
| FR2469197A1 (fr) | 1981-05-22 |
| DE3040006A1 (de) | 1981-05-14 |
| FR2469197B1 (enExample) | 1985-03-29 |
| NL8005270A (nl) | 1981-06-01 |
| JPS5676221A (en) | 1981-06-23 |
| GB2062488A (en) | 1981-05-28 |
| JPS6053648B2 (ja) | 1985-11-27 |
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Legal Events
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