FI990334A - Filtertyg - Google Patents

Filtertyg Download PDF

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Publication number
FI990334A
FI990334A FI990334A FI990334A FI990334A FI 990334 A FI990334 A FI 990334A FI 990334 A FI990334 A FI 990334A FI 990334 A FI990334 A FI 990334A FI 990334 A FI990334 A FI 990334A
Authority
FI
Finland
Prior art keywords
middle layer
filter
filter cloth
protective layers
cloth
Prior art date
Application number
FI990334A
Other languages
English (en)
Finnish (fi)
Other versions
FI106366B (sv
FI990334A0 (sv
Inventor
Esa Oksanen
Aarne-Matti Heikkilae
Original Assignee
Tamfelt Oyj Abp
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=8553823&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=FI990334(A) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Tamfelt Oyj Abp filed Critical Tamfelt Oyj Abp
Priority to FI990334A priority Critical patent/FI106366B/sv
Publication of FI990334A0 publication Critical patent/FI990334A0/sv
Priority to AT00903741T priority patent/ATE347431T1/de
Priority to ES00903741T priority patent/ES2274777T3/es
Priority to DE60032215T priority patent/DE60032215T2/de
Priority to PL350361A priority patent/PL194966B1/pl
Priority to PCT/FI2000/000105 priority patent/WO2000048707A1/en
Priority to PT00903741T priority patent/PT1154832E/pt
Priority to DK00903741T priority patent/DK1154832T3/da
Priority to AU25528/00A priority patent/AU777057C/en
Priority to EP06122550A priority patent/EP1779912A1/en
Priority to EP00903741A priority patent/EP1154832B1/en
Publication of FI990334A publication Critical patent/FI990334A/sv
Publication of FI106366B publication Critical patent/FI106366B/sv
Application granted granted Critical
Priority to US09/930,173 priority patent/US6787492B2/en

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D39/00Filtering material for liquid or gaseous fluids
    • B01D39/08Filter cloth, i.e. woven, knitted or interlaced material
    • B01D39/083Filter cloth, i.e. woven, knitted or interlaced material of organic material
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D25/00Filters formed by clamping together several filtering elements or parts of such elements
    • B01D25/12Filter presses, i.e. of the plate or plate and frame type
    • B01D25/127Filter presses, i.e. of the plate or plate and frame type with one or more movable filter bands arranged to be clamped between the press plates or between a plate and a frame during filtration, e.g. zigzag endless filter bands
    • B01D25/1275Filter presses, i.e. of the plate or plate and frame type with one or more movable filter bands arranged to be clamped between the press plates or between a plate and a frame during filtration, e.g. zigzag endless filter bands the plates or the frames being placed in a non-vertical position
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D25/00Filters formed by clamping together several filtering elements or parts of such elements
    • B01D25/12Filter presses, i.e. of the plate or plate and frame type
    • B01D25/19Clamping means for closing the filter press, e.g. hydraulic jacks
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D25/00Filters formed by clamping together several filtering elements or parts of such elements
    • B01D25/28Leaching or washing filter cakes in the filter handling the filter cake for purposes other than regenerating
    • B01D25/282Leaching or washing filter cakes in the filter handling the filter cake for purposes other than regenerating for drying
    • B01D25/285Leaching or washing filter cakes in the filter handling the filter cake for purposes other than regenerating for drying by compression using inflatable membranes
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D2239/00Aspects relating to filtering material for liquid or gaseous fluids
    • B01D2239/02Types of fibres, filaments or particles, self-supporting or supported materials
    • B01D2239/0216Bicomponent or multicomponent fibres
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D2239/00Aspects relating to filtering material for liquid or gaseous fluids
    • B01D2239/04Additives and treatments of the filtering material
    • B01D2239/0414Surface modifiers, e.g. comprising ion exchange groups
    • B01D2239/0421Rendering the filter material hydrophilic
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D2239/00Aspects relating to filtering material for liquid or gaseous fluids
    • B01D2239/04Additives and treatments of the filtering material
    • B01D2239/0414Surface modifiers, e.g. comprising ion exchange groups
    • B01D2239/0428Rendering the filter material hydrophobic
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D2239/00Aspects relating to filtering material for liquid or gaseous fluids
    • B01D2239/04Additives and treatments of the filtering material
    • B01D2239/0471Surface coating material
    • B01D2239/0478Surface coating material on a layer of the filter
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D2239/00Aspects relating to filtering material for liquid or gaseous fluids
    • B01D2239/06Filter cloth, e.g. knitted, woven non-woven; self-supported material
    • B01D2239/065More than one layer present in the filtering material
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D2239/00Aspects relating to filtering material for liquid or gaseous fluids
    • B01D2239/06Filter cloth, e.g. knitted, woven non-woven; self-supported material
    • B01D2239/065More than one layer present in the filtering material
    • B01D2239/0659The layers being joined by needling
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D2239/00Aspects relating to filtering material for liquid or gaseous fluids
    • B01D2239/06Filter cloth, e.g. knitted, woven non-woven; self-supported material
    • B01D2239/065More than one layer present in the filtering material
    • B01D2239/0668The layers being joined by heat or melt-bonding
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D2239/00Aspects relating to filtering material for liquid or gaseous fluids
    • B01D2239/06Filter cloth, e.g. knitted, woven non-woven; self-supported material
    • B01D2239/065More than one layer present in the filtering material
    • B01D2239/0672The layers being joined by welding
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D2239/00Aspects relating to filtering material for liquid or gaseous fluids
    • B01D2239/06Filter cloth, e.g. knitted, woven non-woven; self-supported material
    • B01D2239/065More than one layer present in the filtering material
    • B01D2239/0681The layers being joined by gluing
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D2239/00Aspects relating to filtering material for liquid or gaseous fluids
    • B01D2239/12Special parameters characterising the filtering material
    • B01D2239/1258Permeability
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D2239/00Aspects relating to filtering material for liquid or gaseous fluids
    • B01D2239/12Special parameters characterising the filtering material
    • B01D2239/1291Other parameters
    • YGENERAL 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
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00Stock material or miscellaneous articles
    • Y10T428/24Structurally defined web or sheet [e.g., overall dimension, etc.]
    • Y10T428/24942Structurally defined web or sheet [e.g., overall dimension, etc.] including components having same physical characteristic in differing degree
    • Y10T428/24992Density or compression of components
    • YGENERAL 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
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T442/00Fabric [woven, knitted, or nonwoven textile or cloth, etc.]
    • Y10T442/20Coated or impregnated woven, knit, or nonwoven fabric which is not [a] associated with another preformed layer or fiber layer or, [b] with respect to woven and knit, characterized, respectively, by a particular or differential weave or knit, wherein the coating or impregnation is neither a foamed material nor a free metal or alloy layer
    • Y10T442/2615Coating or impregnation is resistant to penetration by solid implements
    • YGENERAL 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
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T442/00Fabric [woven, knitted, or nonwoven textile or cloth, etc.]
    • Y10T442/20Coated or impregnated woven, knit, or nonwoven fabric which is not [a] associated with another preformed layer or fiber layer or, [b] with respect to woven and knit, characterized, respectively, by a particular or differential weave or knit, wherein the coating or impregnation is neither a foamed material nor a free metal or alloy layer
    • Y10T442/2631Coating or impregnation provides heat or fire protection
    • YGENERAL 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
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T442/00Fabric [woven, knitted, or nonwoven textile or cloth, etc.]
    • Y10T442/30Woven fabric [i.e., woven strand or strip material]
    • YGENERAL 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
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T442/00Fabric [woven, knitted, or nonwoven textile or cloth, etc.]
    • Y10T442/30Woven fabric [i.e., woven strand or strip material]
    • Y10T442/3472Woven fabric including an additional woven fabric layer
    • Y10T442/348Mechanically needled or hydroentangled
    • Y10T442/3496Coated, impregnated, or autogenously bonded
    • YGENERAL 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
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T442/00Fabric [woven, knitted, or nonwoven textile or cloth, etc.]
    • Y10T442/30Woven fabric [i.e., woven strand or strip material]
    • Y10T442/3707Woven fabric including a nonwoven fabric layer other than paper
    • YGENERAL 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
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T442/00Fabric [woven, knitted, or nonwoven textile or cloth, etc.]
    • Y10T442/30Woven fabric [i.e., woven strand or strip material]
    • Y10T442/3707Woven fabric including a nonwoven fabric layer other than paper
    • Y10T442/3724Needled
    • YGENERAL 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
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T442/00Fabric [woven, knitted, or nonwoven textile or cloth, etc.]
    • Y10T442/30Woven fabric [i.e., woven strand or strip material]
    • Y10T442/3707Woven fabric including a nonwoven fabric layer other than paper
    • Y10T442/3724Needled
    • Y10T442/3732Including an additional nonwoven fabric

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Filtering Materials (AREA)
  • Filtering Of Dispersed Particles In Gases (AREA)
  • Filtration Of Liquid (AREA)
  • Centrifugal Separators (AREA)
  • Glass Compositions (AREA)
  • Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)
FI990334A 1999-02-17 1999-02-17 Filtertyg FI106366B (sv)

Priority Applications (12)

Application Number Priority Date Filing Date Title
FI990334A FI106366B (sv) 1999-02-17 1999-02-17 Filtertyg
EP00903741A EP1154832B1 (en) 1999-02-17 2000-02-14 Filter cloth
PCT/FI2000/000105 WO2000048707A1 (en) 1999-02-17 2000-02-14 Filter cloth
AU25528/00A AU777057C (en) 1999-02-17 2000-02-14 Filter cloth
DE60032215T DE60032215T2 (de) 1999-02-17 2000-02-14 Filterstoff
PL350361A PL194966B1 (pl) 1999-02-17 2000-02-14 Tkanina filtracyjna
AT00903741T ATE347431T1 (de) 1999-02-17 2000-02-14 Filterstoff
PT00903741T PT1154832E (pt) 1999-02-17 2000-02-14 Pano do filtro
DK00903741T DK1154832T3 (da) 1999-02-17 2000-02-14 Filterklæde
ES00903741T ES2274777T3 (es) 1999-02-17 2000-02-14 Tela filtrante.
EP06122550A EP1779912A1 (en) 1999-02-17 2000-02-14 Method for solid/liquid separation and pressure filter
US09/930,173 US6787492B2 (en) 1999-02-17 2001-08-16 Filter cloth

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FI990334A FI106366B (sv) 1999-02-17 1999-02-17 Filtertyg
FI990334 1999-02-17

Publications (3)

Publication Number Publication Date
FI990334A0 FI990334A0 (sv) 1999-02-17
FI990334A true FI990334A (sv) 2000-08-18
FI106366B FI106366B (sv) 2001-01-31

Family

ID=8553823

Family Applications (1)

Application Number Title Priority Date Filing Date
FI990334A FI106366B (sv) 1999-02-17 1999-02-17 Filtertyg

Country Status (11)

Country Link
US (1) US6787492B2 (sv)
EP (2) EP1154832B1 (sv)
AT (1) ATE347431T1 (sv)
AU (1) AU777057C (sv)
DE (1) DE60032215T2 (sv)
DK (1) DK1154832T3 (sv)
ES (1) ES2274777T3 (sv)
FI (1) FI106366B (sv)
PL (1) PL194966B1 (sv)
PT (1) PT1154832E (sv)
WO (1) WO2000048707A1 (sv)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6787492B2 (en) 1999-02-17 2004-09-07 Tamfelt Oyj Abp Filter cloth

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FI104702B (sv) * 1999-06-16 2000-03-31 Tamfelt Oyj Abp Ett filtertyg och en av detsamma tillverkad utbytbar filtermodul
US20060054571A1 (en) * 2004-09-10 2006-03-16 Lopez Gerardo V Continuous loop filter media and method of filtering particulate
US7439004B2 (en) * 2004-11-30 2008-10-21 Xerox Corporation Methods for washing and dewatering toner
ITRE20060162A1 (it) * 2006-12-29 2008-06-30 Giuseppe Salis Pacco piastre filtranti a nastro di tipo continuo e relativa macchina di filtrazione
EP2040073A1 (en) 2007-09-20 2009-03-25 Iline Microsystems, S.L. Microfluidic device and method for fluid clotting time determination
CN102485308A (zh) * 2010-12-02 2012-06-06 德米特利·尼克史切夫 用于固液分离的过滤设备
US11638887B2 (en) 2012-01-18 2023-05-02 Oase Gmbh Filter unit
DE202012103694U1 (de) 2012-09-26 2014-01-07 Heimbach Gmbh & Co. Kg Filterband
CN105072894B (zh) * 2013-01-18 2018-03-02 拉瓦利思技术有限责任公司 过滤单元
GB201321008D0 (en) * 2013-11-28 2014-01-15 Clear Edge Germany Gmbh Tower press belt
CN110064247A (zh) * 2019-05-16 2019-07-30 苏州海蓝环保科技有限公司 一种烧结机尾脱硫除尘专用滤料以及生产工艺
CN110721530A (zh) * 2019-10-22 2020-01-24 安徽原野滤材有限公司 一种高压强滤布结构
CN111589228A (zh) * 2019-12-20 2020-08-28 上海相寻电子科技有限公司 一种过滤材料、其制备方法和应用
CN116651083B (zh) * 2023-08-01 2023-10-03 福建省永春金春酿造有限公司 一种沉清过滤设备

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FI64959C (fi) * 1982-10-08 1984-02-10 Tamfelt Oy Ab Pressfilt foer transport av en fiberbana genom presspartiet i n pappersmaskin och foerfarande foer pressfiltens tillver knng
JPS61162299A (ja) * 1985-01-10 1986-07-22 Ebara Infilco Co Ltd 含水物の脱水処理装置
US4726978A (en) * 1985-10-23 1988-02-23 Siebe Gorman & Company Limited Charcoal fabric needled to supporting fabrics
DE3829010C2 (de) * 1988-08-26 1994-09-29 Zuericher Beuteltuchfabrik Ag Filtermedium für kuchenbildende Filtrationsprozesse
SU1724321A1 (ru) 1989-12-07 1992-04-07 Всесоюзный научно-исследовательский институт нетканых текстильных материалов Многослойный фильтровальный материал дл очистки газов и способ его изготовлени
DE4013786A1 (de) * 1990-04-28 1991-11-07 Siempelkamp Gmbh & Co Verfahren zum entwaessern eines schlammvolumens und trennstraenge fuer die durchfuehrung des verfahrens
AT395379B (de) * 1991-06-06 1992-12-10 Farnleitner Armin Filterelement fuer plattenfilter
DE9311628U1 (de) 1993-08-04 1993-09-16 Heimbach Gmbh Thomas Josef Filtermittel
US6169045B1 (en) * 1993-11-16 2001-01-02 Kimberly-Clark Worldwide, Inc. Nonwoven filter media
GB9401902D0 (en) 1994-02-01 1994-03-30 Scape Group Plc Industrial fabric
DE19526458A1 (de) * 1995-07-20 1997-01-23 Kufferath Geb Gkd Filtertuch für Filterpressen
PL315997A1 (en) * 1996-09-09 1998-03-16 Larox Poland Sp Z Oo Method of filtering and washing under pressure suspensions of solids in liwuids
FI106366B (sv) 1999-02-17 2001-01-31 Tamfelt Oyj Abp Filtertyg

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6787492B2 (en) 1999-02-17 2004-09-07 Tamfelt Oyj Abp Filter cloth

Also Published As

Publication number Publication date
EP1779912A1 (en) 2007-05-02
DE60032215T2 (de) 2007-03-15
EP1154832A1 (en) 2001-11-21
AU777057B2 (en) 2004-09-30
ES2274777T3 (es) 2007-06-01
US6787492B2 (en) 2004-09-07
AU2552800A (en) 2000-09-04
WO2000048707A1 (en) 2000-08-24
ATE347431T1 (de) 2006-12-15
FI106366B (sv) 2001-01-31
PL194966B1 (pl) 2007-07-31
EP1154832B1 (en) 2006-12-06
PL350361A1 (en) 2002-12-02
PT1154832E (pt) 2007-01-31
DK1154832T3 (da) 2007-02-26
FI990334A0 (sv) 1999-02-17
AU777057C (en) 2007-03-15
DE60032215D1 (de) 2007-01-18
US20020127935A1 (en) 2002-09-12

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Owner name: TAMFELT FILTRATION OY

Free format text: TAMFELT FILTRATION OY

MA Patent expired