KR830007218A - 연마재 - Google Patents

연마재 Download PDF

Info

Publication number
KR830007218A
KR830007218A KR1019810003441A KR810003441A KR830007218A KR 830007218 A KR830007218 A KR 830007218A KR 1019810003441 A KR1019810003441 A KR 1019810003441A KR 810003441 A KR810003441 A KR 810003441A KR 830007218 A KR830007218 A KR 830007218A
Authority
KR
South Korea
Prior art keywords
abrasive
filaments
binder
bonded
aggregate
Prior art date
Legal status (The legal status 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 status listed.)
Granted
Application number
KR1019810003441A
Other languages
English (en)
Other versions
KR890000579B1 (ko
Inventor
프레드릭 헤이어 레이몬드
레이몬드 로브니스 윌리암
Original Assignee
크루잔 알렉산더
미네소타 마이닝앤드 매뉴팩츄어링 컴페니
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 크루잔 알렉산더, 미네소타 마이닝앤드 매뉴팩츄어링 컴페니 filed Critical 크루잔 알렉산더
Publication of KR830007218A publication Critical patent/KR830007218A/ko
Application granted granted Critical
Publication of KR890000579B1 publication Critical patent/KR890000579B1/ko
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24D—TOOLS FOR GRINDING, BUFFING OR SHARPENING
    • B24D11/00—Constructional features of flexible abrasive materials; Special features in the manufacture of such materials
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24D—TOOLS FOR GRINDING, BUFFING OR SHARPENING
    • B24D18/00—Manufacture of grinding tools or other grinding devices, e.g. wheels, not otherwise provided for
    • B24D18/0036—Manufacture of grinding tools or other grinding devices, e.g. wheels, not otherwise provided for by winding up abrasive bands
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24D—TOOLS FOR GRINDING, BUFFING OR SHARPENING
    • B24D3/00—Physical features of abrasive bodies, or sheets, e.g. abrasive surfaces of special nature; Abrasive bodies or sheets characterised by their constituents
    • B24D3/001—Physical features of abrasive bodies, or sheets, e.g. abrasive surfaces of special nature; Abrasive bodies or sheets characterised by their constituents the constituent being used as supporting member
    • B24D3/002—Flexible supporting members, e.g. paper, woven, plastic materials
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24D—TOOLS FOR GRINDING, BUFFING OR SHARPENING
    • B24D3/00—Physical features of abrasive bodies, or sheets, e.g. abrasive surfaces of special nature; Abrasive bodies or sheets characterised by their constituents
    • B24D3/02—Physical features of abrasive bodies, or sheets, e.g. abrasive surfaces of special nature; Abrasive bodies or sheets characterised by their constituents the constituent being used as bonding agent
    • B24D3/20—Physical features of abrasive bodies, or sheets, e.g. abrasive surfaces of special nature; Abrasive bodies or sheets characterised by their constituents the constituent being used as bonding agent and being essentially organic
    • B24D3/28—Resins or natural or synthetic macromolecular compounds
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24D—TOOLS FOR GRINDING, BUFFING OR SHARPENING
    • B24D7/00—Bonded abrasive wheels, or wheels with inserted abrasive blocks, designed for acting otherwise than only by their periphery, e.g. by the front face; Bushings or mountings therefor

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Polishing Bodies And Polishing Tools (AREA)

Abstract

내용 없음

Description

연마재
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음
제1도는 본 발명에 따라 만들어진 연마륜의 사시도.
제2-4도는 본 발명의 연마재를 제조하기 위한 방법을 개략적으로 나타내는 도면.
제5도는 본 발명의 연마재를 제조하기 위한 바람직한 공정과 장치의 세부를 나타내도록 부분 절제되어 도시된 개략 사시도.
제6도는 제5도의 선 6-6에 따른 단면도.
제7도는 본 발명에 따라 만들어진 권취된 연마륜의 측면도.

Claims (16)

  1. 상호 접촉지점들에서 접합된 파형 필라멘트들로 이루어진 모체와, 상기 모체내에 분포된 적어도 2mm의 평균입자크기를 가지며, 연마 입자대 접합제 중량비가 약 1:1-20:1로 되도록 접합제와 결합된 연마입자들로 이루어진 다수의 연마집괴들로 구성된 연마재.
  2. 륜 형태의 청구범위 1항의 연마재.
  3. 벨트 형태의 청구범위 1항의 연마재.
  4. 디스크 형태의 청구범위 1항의 연마재.
  5. 모체가 70-97% 정도의 공간체적을 가지는, 청구범위 2항의 연마재.
  6. 필라멘트들이 유기 필라멘트들인, 청구범위 1항의 연마.
  7. 재유 기필라멘트들이 나일론 및 폴리에스터로 구성된 군으로부터 선택된 유기물질로 형성된 청구범위 6항의 연마재.
  8. 상기 필라멘트들이 페놀수지, 에폭시수지, 아크 릴수지, 이소시아 누레이트 및 폴리우레탄으로 구성된 군으로부터 선택된 유기 결합제로 서로 접합되어 있는 청구범위 1항의 연마재.
  9. 상기 필라멘트들이 3-500 데니어를 가지며, 상기 모체가 2-50mm 두께를 가지는 , 청구범위 6항의 연마재.
  10. 상기 결합제가 페놀수지, 우레아-포름알데히드, 셋락, 에폭시수지, 이소시아누레이트, 폴리우레탄가죽아교로 구성된 군으로부터 선택된, 청구범위 1항의 연마재.
  11. 상기 연마집괴들이 2-15mm의 평균입자크기를 가지며 상기 륜이 25-500mm의 평균직경을 가지는 청구범위 2항의 연마재.
  12. 모체 전체에 걸쳐 주입된 탄성체 물질의 보강물질을 또한 포함하는 청구범위 1항의 연마재.
  13. 상기 탄성체 보강물질이 중합체 기포인, 청구범위 12항의 연만재.
  14. 상호 접촉지점들에서 접합된 파형 필라멘트들로 구성된 숭고성 웨브내에, 평균입자크기가 적어도 2mm인 다수의 연마집괴들을 형성시켜 연마집괴 함유웨브를 제공하는 것을 포함하고, 상기 연마집괴들이연마입자 대 결합제의 중량비가 약 1:1-20:1로 되도록 결합제로 서로 결합된 연마 입자들로 이루어진 연마재 제조방법.
  15. 연마집괴 함유 웨브를 소망의 크기로 절단하고, 그 절단편들을 중첩시켜 집합된 더미를 형성하고, 그 집합체를 압력하에 압축시키고, 그 압력의 제거후에도 그 압축된 형태를 유지하는 방식으로 그 집합체를 서로 접착시킨 다음, 그 압축력을 제거하는 단계들을 포함하는, 청구범위 14항의 방법.
  16. 상기 집합체의 륜을 형성하는 단계를 또한 포함하는, 청구범위 15항의 방법.
    ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.
KR1019810003441A 1980-09-15 1981-09-15 다수의 연마집괴들을 포함하는 연마재 및 그 제조방법 Expired KR890000579B1 (ko)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US06/186,470 US4355489A (en) 1980-09-15 1980-09-15 Abrasive article comprising abrasive agglomerates supported in a fibrous matrix
US????186,470 1980-09-15
US186,470 1980-09-15

Publications (2)

Publication Number Publication Date
KR830007218A true KR830007218A (ko) 1983-10-14
KR890000579B1 KR890000579B1 (ko) 1989-03-21

Family

ID=22685097

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019810003441A Expired KR890000579B1 (ko) 1980-09-15 1981-09-15 다수의 연마집괴들을 포함하는 연마재 및 그 제조방법

Country Status (23)

Country Link
US (1) US4355489A (ko)
EP (1) EP0061457B1 (ko)
JP (1) JPH0355270B2 (ko)
KR (1) KR890000579B1 (ko)
AR (1) AR225967A1 (ko)
AU (1) AU549574B2 (ko)
BE (1) BE890342A (ko)
BR (1) BR8108797A (ko)
CA (1) CA1165569A (ko)
DE (1) DE3176351D1 (ko)
ES (1) ES505422A0 (ko)
GR (1) GR75785B (ko)
IN (1) IN154964B (ko)
IT (1) IT1171527B (ko)
MX (1) MX156019A (ko)
NO (1) NO821530L (ko)
NZ (1) NZ198339A (ko)
PH (1) PH18042A (ko)
SG (1) SG4389G (ko)
WO (1) WO1982001027A1 (ko)
YU (1) YU41260B (ko)
ZA (1) ZA815195B (ko)
ZW (1) ZW22681A1 (ko)

Families Citing this family (70)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4507361A (en) * 1983-07-18 1985-03-26 Allied Corporation Low moisture absorption bristle of nylon and polyester
US4750227A (en) * 1986-10-28 1988-06-14 Dexter Chemical Corporation Abrasive structures and methods for abrading fabrics
CA1321073C (en) * 1987-04-14 1993-08-10 Thomas R. Mcavoy Abrasive article containing helically crimped fibers
US4893439A (en) * 1987-04-14 1990-01-16 Minnesota Mining And Manufacturing Company Abrasive article containing helically crimped fibers
US4842619A (en) * 1987-12-11 1989-06-27 Minnesota Mining And Manufacturing Company Glass polishing article
US4991362A (en) * 1988-09-13 1991-02-12 Minnesota Mining And Manufacturing Company Hand scouring pad
US4925457B1 (en) * 1989-01-30 1995-09-26 Ultimate Abrasive Syst Inc Method for making an abrasive tool
US4966609A (en) * 1989-04-07 1990-10-30 Uniroyal Plastics Co., Inc. Conformable abrasive article
US4988554A (en) * 1989-06-23 1991-01-29 Minnesota Mining And Manufacturing Company Abrasive article coated with a lithium salt of a fatty acid
US5366800A (en) * 1992-03-09 1994-11-22 Northeast Abrasives Diamond And Tools Corporation Abrasive article
EP0688257B1 (en) * 1993-03-12 1998-09-16 Minnesota Mining And Manufacturing Company Method and article for polishing stone
US5346516A (en) * 1993-09-16 1994-09-13 Tepco, Ltd. Non-woven abrasive material containing hydrogenated vegetable oils
US5775984A (en) * 1994-09-23 1998-07-07 Olson; Jim C. Removable-resuable fibrous scrubbing pad for use in wet power orbital scuffing applications
US5582625A (en) * 1995-06-01 1996-12-10 Norton Company Curl-resistant coated abrasives
YU6299A (en) 1996-08-09 1999-11-22 Heinz & Stemmler Andreas Stemmler Method of coating long-keeping-sausages and hard cheeses
US9238207B2 (en) 1997-04-04 2016-01-19 Chien-Min Sung Brazed diamond tools and methods for making the same
US9409280B2 (en) 1997-04-04 2016-08-09 Chien-Min Sung Brazed diamond tools and methods for making the same
US7124753B2 (en) * 1997-04-04 2006-10-24 Chien-Min Sung Brazed diamond tools and methods for making the same
US7368013B2 (en) * 1997-04-04 2008-05-06 Chien-Min Sung Superabrasive particle synthesis with controlled placement of crystalline seeds
US9221154B2 (en) 1997-04-04 2015-12-29 Chien-Min Sung Diamond tools and methods for making the same
US9463552B2 (en) 1997-04-04 2016-10-11 Chien-Min Sung Superbrasvie tools containing uniformly leveled superabrasive particles and associated methods
US6679243B2 (en) 1997-04-04 2004-01-20 Chien-Min Sung Brazed diamond tools and methods for making
US9199357B2 (en) 1997-04-04 2015-12-01 Chien-Min Sung Brazed diamond tools and methods for making the same
TW394723B (en) * 1997-04-04 2000-06-21 Sung Chien Min Abrasive tools with patterned grit distribution and method of manufacture
US6286498B1 (en) 1997-04-04 2001-09-11 Chien-Min Sung Metal bond diamond tools that contain uniform or patterned distribution of diamond grits and method of manufacture thereof
US9868100B2 (en) 1997-04-04 2018-01-16 Chien-Min Sung Brazed diamond tools and methods for making the same
US7323049B2 (en) * 1997-04-04 2008-01-29 Chien-Min Sung High pressure superabrasive particle synthesis
US5928070A (en) * 1997-05-30 1999-07-27 Minnesota Mining & Manufacturing Company Abrasive article comprising mullite
US6302930B1 (en) 1999-01-15 2001-10-16 3M Innovative Properties Company Durable nonwoven abrasive product
US7201645B2 (en) 1999-11-22 2007-04-10 Chien-Min Sung Contoured CMP pad dresser and associated methods
WO2002028802A2 (en) 2000-10-06 2002-04-11 3M Innovative Properties Company Ceramic aggregate particles
EP1326940B1 (en) 2000-10-16 2010-03-31 3M Innovative Properties Company Method of making ceramic aggregate particles
CN1315972C (zh) 2000-10-16 2007-05-16 3M创新有限公司 制造团聚颗粒的方法
US6645624B2 (en) 2000-11-10 2003-11-11 3M Innovative Properties Company Composite abrasive particles and method of manufacture
US6613113B2 (en) 2001-12-28 2003-09-02 3M Innovative Properties Company Abrasive product and method of making the same
US6988937B2 (en) * 2002-04-11 2006-01-24 Saint-Gobain Abrasives Technology Company Method of roll grinding
US6679758B2 (en) 2002-04-11 2004-01-20 Saint-Gobain Abrasives Technology Company Porous abrasive articles with agglomerated abrasives
US6723142B2 (en) * 2002-06-05 2004-04-20 Tepco Ltd. Preformed abrasive articles and method for the manufacture of same
US7044989B2 (en) * 2002-07-26 2006-05-16 3M Innovative Properties Company Abrasive product, method of making and using the same, and apparatus for making the same
US7297170B2 (en) * 2002-07-26 2007-11-20 3M Innovative Properties Company Method of using abrasive product
US6833014B2 (en) 2002-07-26 2004-12-21 3M Innovative Properties Company Abrasive product, method of making and using the same, and apparatus for making the same
US6979713B2 (en) * 2002-11-25 2005-12-27 3M Innovative Properties Company Curable compositions and abrasive articles therefrom
US7169199B2 (en) * 2002-11-25 2007-01-30 3M Innovative Properties Company Curable emulsions and abrasive articles therefrom
US7089925B1 (en) 2004-08-18 2006-08-15 Kinik Company Reciprocating wire saw for cutting hard materials
US8398466B2 (en) 2006-11-16 2013-03-19 Chien-Min Sung CMP pad conditioners with mosaic abrasive segments and associated methods
US8678878B2 (en) 2009-09-29 2014-03-25 Chien-Min Sung System for evaluating and/or improving performance of a CMP pad dresser
US9724802B2 (en) 2005-05-16 2017-08-08 Chien-Min Sung CMP pad dressers having leveled tips and associated methods
US8974270B2 (en) 2011-05-23 2015-03-10 Chien-Min Sung CMP pad dresser having leveled tips and associated methods
US9138862B2 (en) 2011-05-23 2015-09-22 Chien-Min Sung CMP pad dresser having leveled tips and associated methods
US8622787B2 (en) 2006-11-16 2014-01-07 Chien-Min Sung CMP pad dressers with hybridized abrasive surface and related methods
US8393934B2 (en) 2006-11-16 2013-03-12 Chien-Min Sung CMP pad dressers with hybridized abrasive surface and related methods
CN100519084C (zh) * 2005-10-14 2009-07-29 广东奔朗超硬材料制品有限公司 尼龙增强碳化硅磨块的制作方法
US7722438B1 (en) * 2007-08-06 2010-05-25 Honda Motor Co., Ltd. Air blow functionality for disc sander
US9011563B2 (en) 2007-12-06 2015-04-21 Chien-Min Sung Methods for orienting superabrasive particles on a surface and associated tools
US8252263B2 (en) * 2008-04-14 2012-08-28 Chien-Min Sung Device and method for growing diamond in a liquid phase
JP5872895B2 (ja) * 2008-05-05 2016-03-01 スリーエム イノベイティブ プロパティズ カンパニー 音響複合体
CA2748511C (en) * 2008-12-30 2014-07-08 Saint-Gobain Abrasifs Multi-air aqua reservoir moist sanding system
US8850719B2 (en) 2009-02-06 2014-10-07 Nike, Inc. Layered thermoplastic non-woven textile elements
US20100199406A1 (en) 2009-02-06 2010-08-12 Nike, Inc. Thermoplastic Non-Woven Textile Elements
US9682512B2 (en) 2009-02-06 2017-06-20 Nike, Inc. Methods of joining textiles and other elements incorporating a thermoplastic polymer material
US8906275B2 (en) 2012-05-29 2014-12-09 Nike, Inc. Textured elements incorporating non-woven textile materials and methods for manufacturing the textured elements
WO2012040373A2 (en) 2010-09-21 2012-03-29 Ritedia Corporation Diamond particle mololayer heat spreaders and associated methods
CN103649395B (zh) * 2011-06-30 2017-05-31 圣戈班磨料磨具有限公司 具有延长的寿命的非织造磨料制品
US20130255103A1 (en) 2012-04-03 2013-10-03 Nike, Inc. Apparel And Other Products Incorporating A Thermoplastic Polymer Material
WO2015123635A1 (en) 2014-02-17 2015-08-20 3M Innovative Properties Company Scouring article and methods of making and using
KR102305255B1 (ko) * 2014-08-27 2021-09-28 쓰리엠 이노베이티브 프로퍼티즈 컴파니 연마 용품을 제조하는 방법 및 연마 용품
USD785339S1 (en) * 2014-10-23 2017-05-02 Griot's Garage, Inc. Hand applicator buffing pad
WO2021150823A1 (en) * 2020-01-23 2021-07-29 Saint-Gobain Abrasives, Inc. Nonwoven abrasive scrubber
CN112692741A (zh) * 2020-12-01 2021-04-23 江苏启航研磨科技有限公司 一种韧性好耐磨损砂纸的生产工艺
CN112692743A (zh) * 2020-12-01 2021-04-23 江苏启航研磨科技有限公司 一种高摩擦系数砂纸的生产工艺

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3127253A (en) * 1964-03-31 Method
US2216728A (en) * 1935-12-31 1940-10-08 Carborundum Co Abrasive article and method of making the same
US2284715A (en) * 1941-01-22 1942-06-02 Carborundum Co Abrasive article
DE1694594C3 (de) * 1960-01-11 1975-05-28 Minnesota Mining And Manufacturing Co., Saint Paul, Minn. (V.St.A.) Reinigungs- und Polierkörper
US2986455A (en) * 1958-02-21 1961-05-30 Carborundum Co Bonded abrasive articles
US3048482A (en) * 1958-10-22 1962-08-07 Rexall Drug Co Abrasive articles and methods of making the same
US3377151A (en) * 1964-03-26 1968-04-09 Gen Foods Corp Method for making a cleansing aid
US3955324A (en) * 1965-10-10 1976-05-11 Lindstroem Ab Olle Agglomerates of metal-coated diamonds in a continuous synthetic resinous phase
US3982359A (en) * 1968-06-21 1976-09-28 Roc A.G. Abrasive member of bonded aggregates in an elastomeric matrix
US3871139A (en) * 1974-05-10 1975-03-18 Rands Steve Albert Multiple-compliant-bristle, self-centering self-sizing rotary abrasive hone

Also Published As

Publication number Publication date
DE3176351D1 (en) 1987-09-17
IT8149288A1 (it) 1983-03-14
IT8149288A0 (it) 1981-09-14
IT1171527B (it) 1987-06-10
AR225967A1 (es) 1982-05-14
EP0061457A4 (en) 1985-07-01
AU7531381A (en) 1982-04-14
ZA815195B (en) 1982-07-28
SG4389G (en) 1989-05-26
BR8108797A (pt) 1982-08-24
MX156019A (es) 1988-06-16
KR890000579B1 (ko) 1989-03-21
EP0061457B1 (en) 1987-08-12
JPH0355270B2 (ko) 1991-08-22
PH18042A (en) 1985-03-08
ES8302515A1 (es) 1982-12-01
NZ198339A (en) 1985-02-28
CA1165569A (en) 1984-04-17
JPS57501365A (ko) 1982-08-05
YU220681A (en) 1983-12-31
GR75785B (ko) 1984-08-02
BE890342A (fr) 1982-03-15
AU549574B2 (en) 1986-01-30
US4355489A (en) 1982-10-26
IN154964B (ko) 1984-12-22
ZW22681A1 (en) 1982-04-07
WO1982001027A1 (en) 1982-04-01
NO821530L (no) 1982-05-10
ES505422A0 (es) 1982-12-01
EP0061457A1 (en) 1982-10-06
YU41260B (en) 1986-12-31

Similar Documents

Publication Publication Date Title
KR830007218A (ko) 연마재
US4486200A (en) Method of making an abrasive article comprising abrasive agglomerates supported in a fibrous matrix
EP0211591B1 (en) Erodable agglomerates and abrasive products containing the same, and method of preparation
US3121981A (en) Abrasive wheels and method of making the same
US3252775A (en) Foamed polyurethane abrasive wheels
US4037013A (en) Carpet underlay comprising foamed scrap particles
RU92016476A (ru) Способ изготовления композиционных и слоистых материалов и композиция, применяемая в способе
US3154897A (en) Spliced coated abrasive belt
US3889035A (en) Fiber-reinforced plastic articles
CA2445096A1 (en) Water-resistant plywood substitutes made from recycled carpets or textiles
US4275529A (en) High flap density abrasive flap wheel
ES8400887A1 (es) Procedimiento para la fabricacion de filtros de capas multiples.
DE320325T1 (de) Verbundwerkstoff mit elastomerer matrix und mit hohem modul und hoher anisotropie.
WO2001062442A1 (en) Nonwoven abrasive articles and methods
US2768483A (en) Abrasive article and method of making
US3597887A (en) Resilient abrasion
YU194291A (sh) Smučka koja sadrži metalne ploče ili trake od materuala ojačanog vlaknima smole duroplasta
US3027599A (en) Method of molding articles from scrap tire material
US2284739A (en) Manufacture of abrasive materials
ATE153754T1 (de) Verbundwerkstoffe, verfahren und verwendung eines bindemittels zu ihrer herstellung
US2540112A (en) Abrasive wheel
DE2350139C3 (de) Hohlkörperförmiger Schleifkörper
US1448180A (en) Composite laminated structure
US3817819A (en) Fibrous insert for reinforcing foam plastic products and process for the production of these foam plastic products
DE69417415T2 (de) Schleifband mit einem endlosen, biegsamen, nahtlosen träger und herstellungsverfahren

Legal Events

Date Code Title Description
PA0109 Patent application

Patent event code: PA01091R01D

Comment text: Patent Application

Patent event date: 19810915

PG1501 Laying open of application
PA0201 Request for examination

Patent event code: PA02012R01D

Patent event date: 19860826

Comment text: Request for Examination of Application

Patent event code: PA02011R01I

Patent event date: 19810915

Comment text: Patent Application

PE0902 Notice of grounds for rejection

Comment text: Notification of reason for refusal

Patent event date: 19880927

Patent event code: PE09021S01D

PG1605 Publication of application before grant of patent

Comment text: Decision on Publication of Application

Patent event code: PG16051S01I

Patent event date: 19890119

PE0701 Decision of registration

Patent event code: PE07011S01D

Comment text: Decision to Grant Registration

Patent event date: 19890607

PR0701 Registration of establishment

Comment text: Registration of Establishment

Patent event date: 19890706

Patent event code: PR07011E01D

PR1002 Payment of registration fee

Payment date: 19890706

End annual number: 3

Start annual number: 1

PR1001 Payment of annual fee

Payment date: 19920213

Start annual number: 4

End annual number: 4

PR1001 Payment of annual fee

Payment date: 19930305

Start annual number: 5

End annual number: 5

PR1001 Payment of annual fee

Payment date: 19940309

Start annual number: 6

End annual number: 6

PR1001 Payment of annual fee

Payment date: 19950317

Start annual number: 7

End annual number: 7

PR1001 Payment of annual fee

Payment date: 19960229

Start annual number: 8

End annual number: 8

PR1001 Payment of annual fee

Payment date: 19970227

Start annual number: 9

End annual number: 9

PR1001 Payment of annual fee

Payment date: 19980309

Start annual number: 10

End annual number: 10

PR1001 Payment of annual fee

Payment date: 19990316

Start annual number: 11

End annual number: 11

PR1001 Payment of annual fee

Payment date: 20000318

Start annual number: 12

End annual number: 12

PR1001 Payment of annual fee

Payment date: 20010319

Start annual number: 13

End annual number: 13

PC1801 Expiration of term