DK40293D0 - Method for preparing a filter body - Google Patents

Method for preparing a filter body

Info

Publication number
DK40293D0
DK40293D0 DK93402A DK40293A DK40293D0 DK 40293 D0 DK40293 D0 DK 40293D0 DK 93402 A DK93402 A DK 93402A DK 40293 A DK40293 A DK 40293A DK 40293 D0 DK40293 D0 DK 40293D0
Authority
DK
Denmark
Prior art keywords
passage
filter body
plastifiable
particle
based material
Prior art date
Application number
DK93402A
Other languages
English (en)
Inventor
Per Stobbe
Original Assignee
Per Stobbe
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 Per Stobbe filed Critical Per Stobbe
Priority to DK93402A priority Critical patent/DK40293D0/da
Publication of DK40293D0 publication Critical patent/DK40293D0/da
Priority to EP94911861A priority patent/EP0692995B1/en
Priority to PCT/DK1994/000140 priority patent/WO1994022556A1/en
Priority to CA002159892A priority patent/CA2159892A1/en
Priority to DE69404028T priority patent/DE69404028T2/de
Priority to JP6521570A priority patent/JPH08508199A/ja
Priority to AT94911861T priority patent/ATE154892T1/de
Priority to AU64247/94A priority patent/AU6424794A/en

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D39/00—Filtering material for liquid or gaseous fluids
    • B01D39/14—Other self-supporting filtering material ; Other filtering material
    • B01D39/20—Other self-supporting filtering material ; Other filtering material of inorganic material, e.g. asbestos paper, metallic filtering material of non-woven wires
    • B01D39/2068—Other inorganic materials, e.g. ceramics
    • B01D39/2072—Other inorganic materials, e.g. ceramics the material being particulate or granular
    • B01D39/2075—Other inorganic materials, e.g. ceramics the material being particulate or granular sintered or bonded by inorganic agents
    • 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
    • B01D46/2403—Particle separators, e.g. dust precipitators, using rigid hollow filter bodies characterised by the physical shape or structure of the filtering element
    • B01D46/2418—Honeycomb filters
    • B01D46/2451—Honeycomb filters characterized by the geometrical structure, shape, pattern or configuration or parameters related to the geometry of the structure
    • B01D46/2474—Honeycomb filters characterized by the geometrical structure, shape, pattern or configuration or parameters related to the geometry of the structure of the walls along the length of the honeycomb
    • 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
    • B01D46/0001—Making filtering elements
    • 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
    • B01D46/2403—Particle separators, e.g. dust precipitators, using rigid hollow filter bodies characterised by the physical shape or structure of the filtering element
    • B01D46/2418—Honeycomb filters
    • B01D46/2451—Honeycomb filters characterized by the geometrical structure, shape, pattern or configuration or parameters related to the geometry of the structure
    • B01D46/2482—Thickness, height, width, length or diameter
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28B11/00—Apparatus or processes for treating or working the shaped or preshaped articles
    • B28B11/003—Apparatus or processes for treating or working the shaped or preshaped articles the shaping of preshaped articles, e.g. by bending
    • B28B11/006—Making hollow articles or partly closed articles
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
    • F01N3/02—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust
    • F01N3/021—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters
    • F01N3/022—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters characterised by specially adapted filtering structure, e.g. honeycomb, mesh or fibrous
    • F01N3/0222—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters characterised by specially adapted filtering structure, e.g. honeycomb, mesh or fibrous the structure being monolithic, e.g. honeycombs
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
    • F01N3/02—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust
    • F01N3/021—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters
    • F01N3/022—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters characterised by specially adapted filtering structure, e.g. honeycomb, mesh or fibrous
    • F01N3/0228—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters characterised by specially adapted filtering structure, e.g. honeycomb, mesh or fibrous the structure being made of foamed rubber or plastics
    • 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
    • B01D46/2403—Particle separators, e.g. dust precipitators, using rigid hollow filter bodies characterised by the physical shape or structure of the filtering element
    • B01D46/2418—Honeycomb filters
    • B01D46/2425—Honeycomb filters characterized by parameters related to the physical properties of the honeycomb structure material
    • B01D46/2429—Honeycomb filters characterized by parameters related to the physical properties of the honeycomb structure material of the honeycomb walls or cells
    • 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
    • B01D46/2403—Particle separators, e.g. dust precipitators, using rigid hollow filter bodies characterised by the physical shape or structure of the filtering element
    • B01D46/2418—Honeycomb filters
    • B01D46/2451—Honeycomb filters characterized by the geometrical structure, shape, pattern or configuration or parameters related to the geometry of the structure
    • B01D46/247—Honeycomb filters characterized by the geometrical structure, shape, pattern or configuration or parameters related to the geometry of the structure of the cells
    • 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
    • B01D46/2403—Particle separators, e.g. dust precipitators, using rigid hollow filter bodies characterised by the physical shape or structure of the filtering element
    • B01D46/2418—Honeycomb filters
    • B01D46/2451—Honeycomb filters characterized by the geometrical structure, shape, pattern or configuration or parameters related to the geometry of the structure
    • B01D46/2486—Honeycomb filters characterized by the geometrical structure, shape, pattern or configuration or parameters related to the geometry of the structure characterised by the shapes or configurations
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N2240/00—Combination or association of two or more different exhaust treating devices, or of at least one such device with an auxiliary device, not covered by indexing codes F01N2230/00 or F01N2250/00, one of the devices being
    • F01N2240/20—Combination or association of two or more different exhaust treating devices, or of at least one such device with an auxiliary device, not covered by indexing codes F01N2230/00 or F01N2250/00, one of the devices being a flow director or deflector
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N2330/00—Structure of catalyst support or particle filter
    • F01N2330/02—Metallic plates or honeycombs, e.g. superposed or rolled-up corrugated or otherwise deformed sheet metal
    • F01N2330/04—Methods of manufacturing
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N2330/00—Structure of catalyst support or particle filter
    • F01N2330/20—Plastics, e.g. polymers, polyester, polyurethane
    • 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
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/10—Internal combustion engine [ICE] based vehicles
    • Y02T10/12—Improving ICE efficiencies
DK93402A 1993-04-05 1993-04-05 Method for preparing a filter body DK40293D0 (da)

Priority Applications (8)

Application Number Priority Date Filing Date Title
DK93402A DK40293D0 (da) 1993-04-05 1993-04-05 Method for preparing a filter body
EP94911861A EP0692995B1 (en) 1993-04-05 1994-04-05 A method for closing a passage in a filter body sample
PCT/DK1994/000140 WO1994022556A1 (en) 1993-04-05 1994-04-05 A method for closing a passage in a filter body sample
CA002159892A CA2159892A1 (en) 1993-04-05 1994-04-05 A method for closing a passage in a filter body sample
DE69404028T DE69404028T2 (de) 1993-04-05 1994-04-05 Methode zum schliessen eines durchgangs in einer filterkörperprobe
JP6521570A JPH08508199A (ja) 1993-04-05 1994-04-05 フィルタ本体の試料の中の通路を閉じる方法
AT94911861T ATE154892T1 (de) 1993-04-05 1994-04-05 Methode zum schliessen eines durchgangs in einer filterkörperprobe
AU64247/94A AU6424794A (en) 1993-04-05 1994-04-05 A method for closing a passage in a filter body sample

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DK93402A DK40293D0 (da) 1993-04-05 1993-04-05 Method for preparing a filter body

Publications (1)

Publication Number Publication Date
DK40293D0 true DK40293D0 (da) 1993-04-05

Family

ID=8093121

Family Applications (1)

Application Number Title Priority Date Filing Date
DK93402A DK40293D0 (da) 1993-04-05 1993-04-05 Method for preparing a filter body

Country Status (8)

Country Link
EP (1) EP0692995B1 (da)
JP (1) JPH08508199A (da)
AT (1) ATE154892T1 (da)
AU (1) AU6424794A (da)
CA (1) CA2159892A1 (da)
DE (1) DE69404028T2 (da)
DK (1) DK40293D0 (da)
WO (1) WO1994022556A1 (da)

Families Citing this family (39)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3228902B2 (ja) * 1998-03-04 2001-11-12 株式会社アマダ 上型ホルダ装置
US6932850B1 (en) * 1998-06-29 2005-08-23 Pall Corporation Pleated filter and a method for making the same
US6508852B1 (en) 2000-10-13 2003-01-21 Corning Incorporated Honeycomb particulate filters
JP4813756B2 (ja) 2001-04-23 2011-11-09 ダウ グローバル テクノロジーズ エルエルシー セラミックハニカムウォールフローフィルター及びその製造方法
PL366537A1 (en) 2001-04-23 2005-02-07 Dow Global Technologies Inc. Method of making wall-flow monolith filter
US7141088B2 (en) 2001-08-08 2006-11-28 Toyota Jidosha Kabushiki Kaisha Exhaust gas purifying apparatus
JP3685106B2 (ja) 2001-08-08 2005-08-17 トヨタ自動車株式会社 排気浄化装置
CN1285829C (zh) 2001-08-08 2006-11-22 丰田自动车株式会社 一种废气净化装置
JP4186530B2 (ja) * 2001-08-28 2008-11-26 株式会社デンソー 排ガス浄化フィルタの製造方法
WO2003024892A1 (en) * 2001-09-21 2003-03-27 Stobbe Tech Holding A/S Porous ceramic structures and a preparing method
JP3872384B2 (ja) 2002-06-13 2007-01-24 トヨタ自動車株式会社 排ガス浄化フィルタ触媒
JP3719232B2 (ja) 2002-06-18 2005-11-24 トヨタ自動車株式会社 内燃機関のパティキュレートフィルタ
JP4032902B2 (ja) 2002-09-25 2008-01-16 トヨタ自動車株式会社 排気浄化用の基材、および、その製造方法
JP3945452B2 (ja) * 2003-05-30 2007-07-18 株式会社デンソー 排ガス浄化フィルタの製造方法
JP3896998B2 (ja) 2003-07-08 2007-03-22 トヨタ自動車株式会社 内燃機関の排気浄化装置
WO2005056147A2 (en) 2003-11-24 2005-06-23 Corning Incorporated Diesel filter plugging process
JP4767491B2 (ja) 2003-12-11 2011-09-07 日本碍子株式会社 ハニカム構造体
WO2005097446A1 (en) * 2004-04-07 2005-10-20 Liqtech A/S Method for forming organic bonded bodies using ultrasonic energy
JP4532192B2 (ja) * 2004-07-21 2010-08-25 日本碍子株式会社 目封止部形成用部材、及びこれを用いた集塵フィルタの製造方法
US7682577B2 (en) 2005-11-07 2010-03-23 Geo2 Technologies, Inc. Catalytic exhaust device for simplified installation or replacement
US7682578B2 (en) 2005-11-07 2010-03-23 Geo2 Technologies, Inc. Device for catalytically reducing exhaust
US7722828B2 (en) 2005-12-30 2010-05-25 Geo2 Technologies, Inc. Catalytic fibrous exhaust system and method for catalyzing an exhaust gas
DE102008031886A1 (de) * 2008-07-08 2010-01-14 Mahle International Gmbh Partikelfilterelement
FR2939695B1 (fr) 2008-12-17 2011-12-30 Saint Gobain Ct Recherches Structure de purification incorporant un systeme de catalyse supporte par une zircone a l'etat reduit.
JP5677648B2 (ja) * 2012-12-27 2015-02-25 住友化学株式会社 ハニカム構造体の製造方法
JP6140554B2 (ja) 2013-06-28 2017-05-31 住友化学株式会社 ハニカム構造体の製造方法
JP2015009442A (ja) 2013-06-28 2015-01-19 住友化学株式会社 ハニカム構造体の製造方法及びグリーンハニカム成形体の封口用治具
JP6155139B2 (ja) 2013-08-12 2017-06-28 住友化学株式会社 ハニカム構造体の製造方法、治具及びハニカム構造体
WO2016098835A1 (ja) * 2014-12-17 2016-06-23 住友化学株式会社 ハニカム構造体
WO2016098834A1 (ja) * 2014-12-17 2016-06-23 住友化学株式会社 ハニカムフィルタ及びハニカムフィルタの製造方法
JP6509088B2 (ja) * 2015-09-28 2019-05-08 イビデン株式会社 封口ハニカム成形体の製造方法
FR3051836B1 (fr) 2016-05-31 2018-05-25 IFP Energies Nouvelles Filtre a particules a geometrie de canal variable et methodes de fabrication d'un tel filtre
CN110996712A (zh) 2017-06-15 2020-04-10 波雷克斯科技公司 具有可区分的密度或纤维直径的一体多孔纤维介质
JP2020060163A (ja) * 2018-10-12 2020-04-16 イビデン株式会社 ハニカム構造体
JP2020059635A (ja) * 2018-10-12 2020-04-16 イビデン株式会社 ハニカム構造体
JP2020059638A (ja) * 2018-10-12 2020-04-16 イビデン株式会社 ハニカム構造体
JP7198626B2 (ja) * 2018-10-12 2023-01-04 イビデン株式会社 ハニカム構造体
JP7125823B2 (ja) * 2018-10-12 2022-08-25 イビデン株式会社 ハニカム構造体
JP2020093183A (ja) * 2018-12-10 2020-06-18 株式会社Ｓｏｋｅｎ 排ガス浄化フィルタ

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4415344A (en) * 1982-03-01 1983-11-15 Corning Glass Works Diesel particulate filters for use with smaller diesel engines
US4662911A (en) * 1982-03-18 1987-05-05 Nippondenso Co., Ltd. Equipment for trapping particulates in engine exhaust gas
JPH062204B2 (ja) * 1985-06-24 1994-01-12 日本電装株式会社 セラミツク構造体
WO1989009648A1 (en) * 1988-04-08 1989-10-19 Per Stobbe A method of filtering particles from flue gas, a flue gas filter means and a vehicle
JPH03258911A (ja) * 1990-03-08 1991-11-19 Ngk Insulators Ltd ディーゼル微粒子用フィルタ

Also Published As

Publication number Publication date
EP0692995B1 (en) 1997-07-02
EP0692995A1 (en) 1996-01-24
WO1994022556A1 (en) 1994-10-13
JPH08508199A (ja) 1996-09-03
DE69404028D1 (de) 1997-08-07
ATE154892T1 (de) 1997-07-15
DE69404028T2 (de) 1998-02-12
AU6424794A (en) 1994-10-24
CA2159892A1 (en) 1994-10-13

Similar Documents

Publication Publication Date Title
DK40293D0 (da) Method for preparing a filter body
DE69201434T2 (de) Verfahren zur Herstellung poröser keramischer Materialien geeignet für Dieselpartikelfilter.
DE68922157D1 (de) Poröses keramisches Filter mit Bienenwabenstruktur und Verfahren zu seiner Herstellung.
DE69014853D1 (de) Verfahren zur Herstellung von porösen, mehrschichtigen Membranen aus Polytetrafluoräthylen und mehrschichtige Struktur aus teilweise gesintertem Polytetrafluoräthylen.
DE69003879D1 (de) Poröses Material aus Polytetrafluorethylen und Verfahren zu dessen Herstellung.
DE68911811T2 (de) Poröser keramischer Sinter und Verfahren zu dessen Herstellung.
DE3861470D1 (de) Keramisches wabenfilter zur reinigung von abgasen.
DE69112197D1 (de) Verfahren zur Regeneration poröser keramischer Filter.
DE69504075T2 (de) Hochwirksames metallverbundstoffmembrangetterelement und verfahren zur herstellung davon
DE69840728D1 (de) Verfahren zur herstellung honigwabenkörper aus cordierit niedriger expansion
ATE313516T1 (de) Prozesse zur herstellung von wasserfiltern
ATE273061T1 (de) Filterkörper
DE68922193D1 (de) Keramische Stoffe für den Verbundguss und Verfahren zu ihrer Herstellung.
DE69008440T2 (de) Verfahren zur Herstellung keramischer und zusammengesetzter keramischer Körper.
DE69615316D1 (de) Keramischer Wabenkörper und Verfahren zu dessen Herstellung
DE69512303D1 (de) Verfahren zur Herstellung von keramischen Formkörpern mit Honigwabenstruktur aus Cordierit
IL112790A0 (en) Process for manufacturing a porous pipe, porous pipe obtained by said process and use of such a pipe in irrigation
DE3786673D1 (de) Verfahren zur entfernung unerwuenschter zellen aus menschlichen lymphozytenpopulationen, anwendung des verfahrens zur herstellung monoklonaler antikoerper und dafuer geeigneter kit.
DE69017326D1 (de) Poröses Material aus Polytetrafluorethylen und Verfahren zur Herstellung.
DE69011447T2 (de) Gesinterter keramischer Verbundkörper und Verfahren zu seiner Herstellung.
DE69003717T2 (de) Verfahren zur Herstellung teilchenförmiger keramischer Materialien.
DE68905124D1 (de) Verfahren zur herstellung von strukturellen poroesen keramischen koerpern mit bienenwabenstruktur.
DE69014793T2 (de) Gesinterter keramischer Verbundkörper und Verfahren zu seiner Herstellung.
DE68911813T2 (de) Verfahren zur Herstellung von keramischen Materialien für den Verbundguss.
BR9000098A (pt) Filtros de ceramica com estrutura porosa de alveolos abertos e processo para producao de filtro de ceramica

Legal Events

Date Code Title Description
A0 Application filed
AHS Application shelved for other reasons than non-payment