BR8300768A - Montagem de filtro para combustivel - Google Patents

Montagem de filtro para combustivel

Info

Publication number
BR8300768A
BR8300768A BR8300768A BR8300768A BR8300768A BR 8300768 A BR8300768 A BR 8300768A BR 8300768 A BR8300768 A BR 8300768A BR 8300768 A BR8300768 A BR 8300768A BR 8300768 A BR8300768 A BR 8300768A
Authority
BR
Brazil
Prior art keywords
filter assembly
fuel filter
fuel
assembly
filter
Prior art date
Application number
BR8300768A
Other languages
English (en)
Portuguese (pt)
Inventor
Michael E Wilson
David R Oslon
Walter H Stone
Robin B Macdonald
Original Assignee
Racor Industries Inc
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Racor Industries Inc filed Critical Racor Industries Inc
Publication of BR8300768A publication Critical patent/BR8300768A/pt

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M37/00—Apparatus or systems for feeding liquid fuel from storage containers to carburettors or fuel-injection apparatus; Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines
    • F02M37/04—Feeding by means of driven pumps
    • F02M37/16—Feeding by means of driven pumps characterised by provision of personally-, e.g. manually-, operated pumps
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D17/00—Separation of liquids, not provided for elsewhere, e.g. by thermal diffusion
    • B01D17/02—Separation of non-miscible liquids
    • B01D17/0208—Separation of non-miscible liquids by sedimentation
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D17/00—Separation of liquids, not provided for elsewhere, e.g. by thermal diffusion
    • B01D17/02—Separation of non-miscible liquids
    • B01D17/0208—Separation of non-miscible liquids by sedimentation
    • B01D17/0211—Separation of non-miscible liquids by sedimentation with baffles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D17/00—Separation of liquids, not provided for elsewhere, e.g. by thermal diffusion
    • B01D17/02—Separation of non-miscible liquids
    • B01D17/0208—Separation of non-miscible liquids by sedimentation
    • B01D17/0214—Separation of non-miscible liquids by sedimentation with removal of one of the phases
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D17/00—Separation of liquids, not provided for elsewhere, e.g. by thermal diffusion
    • B01D17/02—Separation of non-miscible liquids
    • B01D17/04—Breaking emulsions
    • B01D17/045—Breaking emulsions with coalescers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D17/00—Separation of liquids, not provided for elsewhere, e.g. by thermal diffusion
    • B01D17/08—Thickening liquid suspensions by filtration
    • B01D17/10—Thickening liquid suspensions by filtration with stationary filtering elements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
    • B01D29/11—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with bag, cage, hose, tube, sleeve or like filtering elements
    • B01D29/114—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with bag, cage, hose, tube, sleeve or like filtering elements arranged for inward flow filtration
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
    • B01D29/11—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with bag, cage, hose, tube, sleeve or like filtering elements
    • B01D29/117—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with bag, cage, hose, tube, sleeve or like filtering elements arranged for outward flow filtration
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
    • B01D29/50—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with multiple filtering elements, characterised by their mutual disposition
    • B01D29/56—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with multiple filtering elements, characterised by their mutual disposition in series connection
    • B01D29/58—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with multiple filtering elements, characterised by their mutual disposition in series connection arranged concentrically or coaxially
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
    • B01D29/88—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor having feed or discharge devices
    • B01D29/90—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor having feed or discharge devices for feeding
    • B01D29/902—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor having feed or discharge devices for feeding containing fixed liquid displacement elements or cores
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D35/00—Filtering devices having features not specifically covered by groups B01D24/00 - B01D33/00, or for applications not specifically covered by groups B01D24/00 - B01D33/00; Auxiliary devices for filtration; Filter housing constructions
    • B01D35/14—Safety devices specially adapted for filtration; Devices for indicating clogging
    • B01D35/143—Filter condition indicators
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D35/00—Filtering devices having features not specifically covered by groups B01D24/00 - B01D33/00, or for applications not specifically covered by groups B01D24/00 - B01D33/00; Auxiliary devices for filtration; Filter housing constructions
    • B01D35/14—Safety devices specially adapted for filtration; Devices for indicating clogging
    • B01D35/153—Anti-leakage or anti-return valves
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D35/00—Filtering devices having features not specifically covered by groups B01D24/00 - B01D33/00, or for applications not specifically covered by groups B01D24/00 - B01D33/00; Auxiliary devices for filtration; Filter housing constructions
    • B01D35/18—Heating or cooling the filters
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D35/00—Filtering devices having features not specifically covered by groups B01D24/00 - B01D33/00, or for applications not specifically covered by groups B01D24/00 - B01D33/00; Auxiliary devices for filtration; Filter housing constructions
    • B01D35/26—Filters with built-in pumps filters provided with a pump mounted in or on the casing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D36/00—Filter circuits or combinations of filters with other separating devices
    • B01D36/003—Filters in combination with devices for the removal of liquids
    • B01D36/005—Liquid level sensing means, e.g. for water in gasoil-filters
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D36/00—Filter circuits or combinations of filters with other separating devices
    • B01D36/003—Filters in combination with devices for the removal of liquids
    • B01D36/006—Purge means
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10G—CRACKING HYDROCARBON OILS; PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVE HYDROGENATION, OLIGOMERISATION, POLYMERISATION; RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, OR GASES; REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS; REFORMING OF NAPHTHA; MINERAL WAXES
    • C10G33/00—Dewatering or demulsification of hydrocarbon oils
    • C10G33/06—Dewatering or demulsification of hydrocarbon oils with mechanical means, e.g. by filtration
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M37/00—Apparatus or systems for feeding liquid fuel from storage containers to carburettors or fuel-injection apparatus; Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines
    • F02M37/22—Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines, e.g. arrangements in the feeding system
    • F02M37/24—Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines, e.g. arrangements in the feeding system characterised by water separating means
    • F02M37/26—Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines, e.g. arrangements in the feeding system characterised by water separating means with water detection means
    • F02M37/28—Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines, e.g. arrangements in the feeding system characterised by water separating means with water detection means with means activated by the presence of water, e.g. alarms or means for automatic drainage
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M37/00—Apparatus or systems for feeding liquid fuel from storage containers to carburettors or fuel-injection apparatus; Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines
    • F02M37/22—Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines, e.g. arrangements in the feeding system
    • F02M37/32—Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines, e.g. arrangements in the feeding system characterised by filters or filter arrangements
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M37/00—Apparatus or systems for feeding liquid fuel from storage containers to carburettors or fuel-injection apparatus; Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines
    • F02M37/22—Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines, e.g. arrangements in the feeding system
    • F02M37/32—Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines, e.g. arrangements in the feeding system characterised by filters or filter arrangements
    • F02M37/44—Filters structurally associated with pumps
    • 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
    • F02B3/00—Engines characterised by air compression and subsequent fuel addition
    • F02B3/06—Engines characterised by air compression and subsequent fuel addition with compression ignition

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Mechanical Engineering (AREA)
  • Combustion & Propulsion (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • General Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Filtration Of Liquid (AREA)
BR8300768A 1982-02-24 1983-02-17 Montagem de filtro para combustivel BR8300768A (pt)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US35176182A 1982-02-24 1982-02-24

Publications (1)

Publication Number Publication Date
BR8300768A true BR8300768A (pt) 1983-11-16

Family

ID=23382264

Family Applications (1)

Application Number Title Priority Date Filing Date
BR8300768A BR8300768A (pt) 1982-02-24 1983-02-17 Montagem de filtro para combustivel

Country Status (8)

Country Link
JP (2) JPS58156317A (it)
BR (1) BR8300768A (it)
CA (1) CA1190865A (it)
DE (2) DE3306294A1 (it)
FR (1) FR2522525B1 (it)
GB (1) GB2115305B (it)
IT (1) IT1161013B (it)
MX (1) MX162260A (it)

Families Citing this family (43)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4502955A (en) * 1983-04-14 1985-03-05 Racor Industries, Inc. Filter assembly
JPS6018261U (ja) * 1983-07-15 1985-02-07 マツダ株式会社 デイ−ゼルエンジンの燃料フイルタ−
US4602605A (en) * 1984-02-06 1986-07-29 Adkins James L Entering fuel injection system of a diesel engine
US4579653A (en) * 1984-08-17 1986-04-01 Davco Manufacturing Corporation Side-by-side fuel processor apparatus
US4668393A (en) * 1985-05-14 1987-05-26 Parker-Hannifin Corporation Semipermeable baffle fuel filter
US5547572A (en) * 1985-05-14 1996-08-20 Parker Hannifin Corporation Fuel Filter
JPS6254273U (it) * 1985-09-24 1987-04-03
IT210843Z2 (it) * 1987-03-31 1989-01-11 Iveco Fiat Gruppo per il trattamento del carburante di un motore diesel
JPH0623360B2 (ja) * 1987-10-23 1994-03-30 日本製紙株式会社 接着剤樹脂組成物
DE3816303A1 (de) * 1988-05-13 1989-11-23 Hengst Walter Gmbh & Co Kg Wasserabscheideanlage
US5236579A (en) * 1991-08-22 1993-08-17 Stanadyne Automotive Corp. Fuel filter assembly with modular drain bowl
DE4239099C2 (de) * 1992-11-20 2001-02-15 Mahle Filtersysteme Gmbh Kraftstoff-Filter
DE4400397C2 (de) * 1993-01-28 1998-10-08 Huels Chemische Werke Ag Verfahren zum Nachweisen der Anwesenheit einer oder mehrerer Phasen, die in einer Hauptphase vorliegen
DE4331467A1 (de) * 1993-09-16 1995-03-23 Knecht Filterwerke Gmbh Kraftstoffilter
FR2714117B1 (fr) * 1993-12-22 1996-03-01 Labinal Perfectionnements aux boîtiers de filtres à liquide pour moteur.
DE4344586A1 (de) * 1993-12-24 1995-06-29 Knecht Filterwerke Gmbh Kraftstoffilter
US5592201A (en) * 1994-04-28 1997-01-07 Hewlett-Packard Company Manual priming pump for inkjet printing mechanisms
FR2723616B1 (fr) * 1994-08-09 1996-09-20 Bouetard Freres Dispositif de filtration pour moteur diesel.
DE4442148A1 (de) * 1994-11-26 1996-05-30 Knecht Filterwerke Gmbh Ölfilter
ES2168579T3 (es) * 1996-05-03 2002-06-16 Delphi Tech Inc Cabezal de filtro.
US5783078A (en) * 1996-10-12 1998-07-21 Dana Corporation Fuel/water separator filter without flow diverters and method of making same
DE19955206A1 (de) * 1999-11-17 2001-07-05 Mann & Hummel Filter Kraftstofffilter
EP1274932B8 (de) * 2000-04-18 2007-06-27 ixetic Bad Homburg GmbH Pumpe
JP2002224503A (ja) * 2001-02-02 2002-08-13 Wako Industrial Co Ltd 流体・水分離装置
DE10308427B4 (de) * 2003-02-27 2016-07-07 Mann + Hummel Gmbh Kraftstoffilter
EP1606037B1 (de) * 2003-03-21 2011-12-28 MANN+HUMMEL GmbH Filtersystem für kraftstoff
ITRE20040158A1 (it) * 2004-12-27 2005-03-27 Ufi Filters Spa Gruppo filtrante a doppia azione per carburante
DE102005005848A1 (de) * 2005-02-08 2006-08-10 Mann + Hummel Gmbh Filtersystem für Kraftstoff
DE102005015194A1 (de) 2005-04-02 2006-10-05 Mahle International Gmbh Kraftstofffilter
ITRE20050095A1 (it) * 2005-07-29 2007-01-30 Ufi Filters Spa Filtro combinato per gasolio
FR2910069B1 (fr) * 2006-12-13 2009-04-03 Peugeot Citroen Automobiles Sa Filtre a carburant, tel que gazole, alimentant un moteur a combustion interne d'un vehicule
JP4892407B2 (ja) * 2007-05-24 2012-03-07 ヤマシンフィルタ株式会社 濾過装置、タンク装置
US8241493B2 (en) * 2008-06-16 2012-08-14 Baldwin Filters, Inc. Filter with ejection mechanism
DE102009025393B4 (de) * 2009-06-16 2011-03-31 Mann+Hummel Gmbh 3-stufiger Kraftstofffilter
DE102009047827A1 (de) * 2009-09-30 2011-03-31 Mahle International Gmbh Filtereinrichtung
JP2013151888A (ja) * 2012-01-24 2013-08-08 Denso Corp 燃料フィルタ
JP5841006B2 (ja) * 2012-05-24 2016-01-06 株式会社日本自動車部品総合研究所 燃料濾過装置
ITRE20120066A1 (it) * 2012-10-11 2014-04-12 Ufi Filters Spa Cartuccia filtrante dotata di mezzi per lo spurgo dell'acqua e relativo gruppo filtrante
WO2014094794A1 (en) * 2012-12-21 2014-06-26 Greenoil Standard Aps Coalescer vessel for separating water from liquid hydrocarbons
DE102016013166A1 (de) * 2016-11-04 2018-05-09 Hydac Filter Systems Gmbh Filterelement
CN108555770A (zh) * 2018-05-22 2018-09-21 徐州腾睿智能装备有限公司 一种四氯化碳沉淀块端面研磨设备中的油箱固液分离装置
DE102019119302A1 (de) * 2019-07-16 2021-01-21 Norma Germany Gmbh Ablaufstutzen zum getrennten Auslassen von Flüssigkeiten unterschiedlicher Dichte
CN111624122A (zh) * 2020-05-20 2020-09-04 上海巨乾工贸有限公司 一种轴瓦用磨损检测装置

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2337893A (en) * 1940-02-17 1943-12-28 Hutterer Simon Combination valve, strainer, and preheater
US2524336A (en) * 1945-03-16 1950-10-03 Vokes Ltd Filter
FR1491286A (fr) * 1966-04-26 1967-08-11 Sigma Perfectionnements apportés aux dispositifs d'alimentation en combustible liquide, pour moteurs à combustion interne
US4091265A (en) * 1975-08-06 1978-05-23 Racor Industries, Inc. Fuel filter heating assembly
GB1565299A (en) * 1977-04-05 1980-04-16 Dahl Mfg Inc Filter device for diesel engines
DE2845520C2 (de) * 1978-10-19 1987-03-26 Robert Bosch Gmbh, 7000 Stuttgart Anschraubfiltereinheit für Flüssigkeiten, insbesondere Dieselkraftstoff
US4253954A (en) * 1979-07-02 1981-03-03 Nelson Industries, Inc. Two-stage spin-on separating device
IT8167809A0 (it) * 1980-06-23 1981-06-11 Chicago Rawhide Mfg Co Dispositivo per la rimozione di sostanze contaminanti da un fluido

Also Published As

Publication number Publication date
CA1190865A (en) 1985-07-23
JPS6456110A (en) 1989-03-03
MX162260A (es) 1991-04-18
GB8300812D0 (en) 1983-02-16
DE3306294A1 (de) 1983-09-01
GB2115305B (en) 1986-01-22
JPH0210685B2 (it) 1990-03-09
JPS58156317A (ja) 1983-09-17
FR2522525A1 (fr) 1983-09-09
IT1161013B (it) 1987-03-11
DE3306294C2 (it) 1987-10-01
IT8319656A0 (it) 1983-02-18
JPS6363006B2 (it) 1988-12-06
DE3348166C2 (it) 1990-06-13
GB2115305A (en) 1983-09-07
FR2522525B1 (fr) 1989-04-07

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Legal Events

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B21A Patent or certificate of addition expired [chapter 21.1 patent gazette]

Free format text: PATENTE EXTINTA EM 17/02/98