DE69925611T2 - Stopfbüchsenvorrichtung - Google Patents
Stopfbüchsenvorrichtung Download PDFInfo
- Publication number
- DE69925611T2 DE69925611T2 DE69925611T DE69925611T DE69925611T2 DE 69925611 T2 DE69925611 T2 DE 69925611T2 DE 69925611 T DE69925611 T DE 69925611T DE 69925611 T DE69925611 T DE 69925611T DE 69925611 T2 DE69925611 T2 DE 69925611T2
- Authority
- DE
- Germany
- Prior art keywords
- ring
- rings
- preform
- graphite
- seal assembly
- 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.)
- Expired - Lifetime
Links
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 143
- 229910002804 graphite Inorganic materials 0.000 claims description 119
- 239000010439 graphite Substances 0.000 claims description 117
- 238000007789 sealing Methods 0.000 claims description 61
- 239000000463 material Substances 0.000 claims description 36
- 229910052751 metal Inorganic materials 0.000 claims description 25
- 239000002184 metal Substances 0.000 claims description 25
- 230000001154 acute effect Effects 0.000 claims description 6
- 230000009471 action Effects 0.000 claims description 5
- 239000002994 raw material Substances 0.000 claims description 4
- 239000007858 starting material Substances 0.000 claims description 4
- 230000003628 erosive effect Effects 0.000 claims description 3
- 229910001369 Brass Inorganic materials 0.000 claims description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 2
- 229910000831 Steel Inorganic materials 0.000 claims description 2
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 claims description 2
- 229910052782 aluminium Inorganic materials 0.000 claims description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 2
- 239000010951 brass Substances 0.000 claims description 2
- 229910052802 copper Inorganic materials 0.000 claims description 2
- 239000010949 copper Substances 0.000 claims description 2
- 239000010959 steel Substances 0.000 claims description 2
- 229910052725 zinc Inorganic materials 0.000 claims description 2
- 239000011701 zinc Substances 0.000 claims description 2
- 229910000623 nickel–chromium alloy Inorganic materials 0.000 claims 1
- 239000010935 stainless steel Substances 0.000 claims 1
- 229910001220 stainless steel Inorganic materials 0.000 claims 1
- 210000004907 gland Anatomy 0.000 description 59
- 238000012360 testing method Methods 0.000 description 39
- 238000013461 design Methods 0.000 description 25
- 238000012856 packing Methods 0.000 description 21
- 230000033001 locomotion Effects 0.000 description 19
- 230000008901 benefit Effects 0.000 description 16
- 229910052799 carbon Inorganic materials 0.000 description 14
- 239000007770 graphite material Substances 0.000 description 13
- 239000002245 particle Substances 0.000 description 13
- 238000000429 assembly Methods 0.000 description 12
- 230000000712 assembly Effects 0.000 description 12
- 230000006835 compression Effects 0.000 description 12
- 238000007906 compression Methods 0.000 description 12
- 230000000694 effects Effects 0.000 description 10
- 238000001125 extrusion Methods 0.000 description 9
- 238000009434 installation Methods 0.000 description 9
- 238000000034 method Methods 0.000 description 9
- 230000006872 improvement Effects 0.000 description 8
- 239000000047 product Substances 0.000 description 8
- 230000008569 process Effects 0.000 description 6
- 239000003566 sealing material Substances 0.000 description 6
- 230000001965 increasing effect Effects 0.000 description 5
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 5
- 238000012546 transfer Methods 0.000 description 5
- 239000011888 foil Substances 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 238000000465 moulding Methods 0.000 description 4
- 230000002787 reinforcement Effects 0.000 description 4
- 125000006850 spacer group Chemical group 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 230000000052 comparative effect Effects 0.000 description 3
- 238000011990 functional testing Methods 0.000 description 3
- 230000014759 maintenance of location Effects 0.000 description 3
- 238000002679 ablation Methods 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000005520 cutting process Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 238000011156 evaluation Methods 0.000 description 2
- 238000007689 inspection Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000007493 shaping process Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 238000010998 test method Methods 0.000 description 2
- 229920000049 Carbon (fiber) Polymers 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 238000003915 air pollution Methods 0.000 description 1
- 238000005267 amalgamation Methods 0.000 description 1
- 239000010425 asbestos Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009954 braiding Methods 0.000 description 1
- 239000004917 carbon fiber Substances 0.000 description 1
- 239000003575 carbonaceous material Substances 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 239000007795 chemical reaction product Substances 0.000 description 1
- 238000005056 compaction Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 239000000356 contaminant Substances 0.000 description 1
- 230000036461 convulsion Effects 0.000 description 1
- 230000000254 damaging effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000003028 elevating effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 231100001261 hazardous Toxicity 0.000 description 1
- 229910052734 helium Inorganic materials 0.000 description 1
- 239000001307 helium Substances 0.000 description 1
- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical compound [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 description 1
- 238000003475 lamination Methods 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000013508 migration Methods 0.000 description 1
- 230000005012 migration Effects 0.000 description 1
- 238000010915 one-step procedure Methods 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 230000003763 resistance to breakage Effects 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 229910052895 riebeckite Inorganic materials 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 239000000565 sealant Substances 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 229910021384 soft carbon Inorganic materials 0.000 description 1
- 239000007779 soft material Substances 0.000 description 1
- 235000012773 waffles Nutrition 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/16—Sealings between relatively-moving surfaces
- F16J15/18—Sealings between relatively-moving surfaces with stuffing-boxes for elastic or plastic packings
- F16J15/20—Packing materials therefor
- F16J15/22—Packing materials therefor shaped as strands, ropes, threads, ribbons, or the like
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/16—Sealings between relatively-moving surfaces
- F16J15/18—Sealings between relatively-moving surfaces with stuffing-boxes for elastic or plastic packings
- F16J15/184—Tightening mechanisms
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/16—Sealings between relatively-moving surfaces
- F16J15/18—Sealings between relatively-moving surfaces with stuffing-boxes for elastic or plastic packings
- F16J15/181—Sealings between relatively-moving surfaces with stuffing-boxes for elastic or plastic packings for plastic packings
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/16—Sealings between relatively-moving surfaces
- F16J15/18—Sealings between relatively-moving surfaces with stuffing-boxes for elastic or plastic packings
- F16J15/20—Packing materials therefor
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/16—Sealings between relatively-moving surfaces
- F16J15/26—Sealings between relatively-moving surfaces with stuffing-boxes for rigid sealing rings
-
- 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
- Y10S277/00—Seal for a joint or juncture
- Y10S277/935—Seal made of a particular material
- Y10S277/936—Composite
- Y10S277/938—Carbon or graphite particle or filament
-
- 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
- Y10S277/00—Seal for a joint or juncture
- Y10S277/935—Seal made of a particular material
- Y10S277/939—Containing metal
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Sealing Devices (AREA)
- Gasket Seals (AREA)
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US152768 | 1998-09-14 | ||
| US09/152,768 US6182974B1 (en) | 1996-03-22 | 1998-09-14 | Stuffing box packing assembly |
| PCT/US1999/020761 WO2000015981A1 (en) | 1998-09-14 | 1999-09-09 | Improved stuffing box packing assembly |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| DE69925611D1 DE69925611D1 (de) | 2005-07-07 |
| DE69925611T2 true DE69925611T2 (de) | 2006-04-27 |
Family
ID=22544357
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE69925611T Expired - Lifetime DE69925611T2 (de) | 1998-09-14 | 1999-09-09 | Stopfbüchsenvorrichtung |
Country Status (11)
| Country | Link |
|---|---|
| US (1) | US6182974B1 (enExample) |
| EP (1) | EP1114265B1 (enExample) |
| JP (1) | JP4693991B2 (enExample) |
| KR (1) | KR100671245B1 (enExample) |
| AR (1) | AR020396A1 (enExample) |
| AU (1) | AU5917199A (enExample) |
| BR (1) | BR9913965A (enExample) |
| CO (1) | CO5021179A1 (enExample) |
| DE (1) | DE69925611T2 (enExample) |
| PE (1) | PE20000838A1 (enExample) |
| WO (1) | WO2000015981A1 (enExample) |
Families Citing this family (35)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB0007966D0 (en) * | 2000-04-01 | 2000-05-17 | Klinger Limited | Sealing system |
| US20040118553A1 (en) * | 2002-12-23 | 2004-06-24 | Graftech, Inc. | Flexible graphite thermal management devices |
| US20050082766A1 (en) * | 2003-10-15 | 2005-04-21 | Fisher Controls International | Low adhesion additive |
| US7766340B2 (en) | 2005-09-12 | 2010-08-03 | Garlock Sealing Technologies Llc | Two-piece sealing device |
| US7726339B2 (en) * | 2006-01-14 | 2010-06-01 | Dresser, Inc. | Seal cartridge control valve |
| US20070296161A1 (en) * | 2006-06-21 | 2007-12-27 | Dudman Richard L | Seal, Sealing System, and Method for Sealing |
| US8794638B2 (en) * | 2009-02-27 | 2014-08-05 | Halliburton Energy Services, Inc. | Sealing array for high temperature applications |
| JP5479938B2 (ja) * | 2010-02-15 | 2014-04-23 | カヤバ工業株式会社 | 流体圧シリンダ |
| TWM453066U (zh) * | 2013-01-17 | 2013-05-11 | wan-rong Gong | 閥的填料總成 |
| JP5972208B2 (ja) * | 2013-04-05 | 2016-08-17 | 日本ピラー工業株式会社 | グランドパッキン |
| TWI601894B (zh) * | 2013-10-18 | 2017-10-11 | 進典工業股份有限公司 | 具韌性之盒封式封環 |
| US9234588B2 (en) * | 2013-12-08 | 2016-01-12 | Jdc Control Valves Co., Ltd. | Flexible stuffing box packing assembly |
| US9963395B2 (en) | 2013-12-11 | 2018-05-08 | Baker Hughes, A Ge Company, Llc | Methods of making carbon composites |
| CN103759012B (zh) * | 2014-01-23 | 2016-07-06 | 章华 | 一种柔性石墨低泄漏组合成型填料 |
| US9325012B1 (en) | 2014-09-17 | 2016-04-26 | Baker Hughes Incorporated | Carbon composites |
| US10315922B2 (en) | 2014-09-29 | 2019-06-11 | Baker Hughes, A Ge Company, Llc | Carbon composites and methods of manufacture |
| US10480288B2 (en) | 2014-10-15 | 2019-11-19 | Baker Hughes, A Ge Company, Llc | Articles containing carbon composites and methods of manufacture |
| US9962903B2 (en) | 2014-11-13 | 2018-05-08 | Baker Hughes, A Ge Company, Llc | Reinforced composites, methods of manufacture, and articles therefrom |
| US9745451B2 (en) | 2014-11-17 | 2017-08-29 | Baker Hughes Incorporated | Swellable compositions, articles formed therefrom, and methods of manufacture thereof |
| US11097511B2 (en) | 2014-11-18 | 2021-08-24 | Baker Hughes, A Ge Company, Llc | Methods of forming polymer coatings on metallic substrates |
| US10300627B2 (en) | 2014-11-25 | 2019-05-28 | Baker Hughes, A Ge Company, Llc | Method of forming a flexible carbon composite self-lubricating seal |
| US9714709B2 (en) | 2014-11-25 | 2017-07-25 | Baker Hughes Incorporated | Functionally graded articles and methods of manufacture |
| KR101733280B1 (ko) | 2015-04-02 | 2017-05-08 | 한전케이피에스 주식회사 | 패킹 조임 공구 |
| US10408350B2 (en) * | 2015-04-10 | 2019-09-10 | Nippon Pillar Packing Co., Ltd. | Gland packing and gland packing manufacturing method |
| US9840887B2 (en) * | 2015-05-13 | 2017-12-12 | Baker Hughes Incorporated | Wear-resistant and self-lubricant bore receptacle packoff tool |
| CN105422861B (zh) * | 2015-12-29 | 2017-12-29 | 浙江工业大学 | 一种内置增强环的填料密封结构 |
| US10125274B2 (en) | 2016-05-03 | 2018-11-13 | Baker Hughes, A Ge Company, Llc | Coatings containing carbon composite fillers and methods of manufacture |
| US10344559B2 (en) | 2016-05-26 | 2019-07-09 | Baker Hughes, A Ge Company, Llc | High temperature high pressure seal for downhole chemical injection applications |
| JP6533631B1 (ja) * | 2019-01-16 | 2019-06-19 | 株式会社加地テック | ガス圧縮機及びガス圧縮機の製造方法 |
| CN112283440B (zh) * | 2020-10-20 | 2022-03-08 | 吴忠仪表有限责任公司 | 直行程无料损高温常压填料密封结构 |
| US12018676B2 (en) | 2020-11-20 | 2024-06-25 | Gd Energy Products, Llc | Scraper ring assembly |
| US11692544B2 (en) * | 2020-11-20 | 2023-07-04 | Gd Energy Products, Llc | Scraper ring assembly |
| EP4321784B1 (en) * | 2021-03-23 | 2025-10-01 | SMC Corporation | Shaft sealing structure |
| CN114544097A (zh) * | 2022-01-12 | 2022-05-27 | 合肥通用机械研究院有限公司 | 一种阀门逸散性试验测试装置 |
| US12486901B1 (en) * | 2022-09-29 | 2025-12-02 | Third Coast Innovation Llc | Adjustable high pressure packing assembly |
Family Cites Families (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1529912A (en) | 1975-02-04 | 1978-10-25 | Latty C | Method for manufacturing sealing rings |
| US4328974A (en) | 1980-02-19 | 1982-05-11 | White Richard E | Stuffing box packing system and method |
| US4256317A (en) | 1980-04-24 | 1981-03-17 | Union Carbide Corporation | High-temperature, high-pressure valve packing system |
| IN165419B (enExample) * | 1985-12-26 | 1989-10-14 | Electric Power Res Inst | |
| US5240769A (en) | 1986-11-25 | 1993-08-31 | Nippon Pillar Packing Co. Ltd. | Packing material and packing made of the same |
| JPS63135653A (ja) | 1986-11-25 | 1988-06-08 | Nippon Pillar Packing Co Ltd | パツキン材料 |
| US5228701A (en) | 1988-03-22 | 1993-07-20 | Ucar Carbon Technology Corporation | Flexible graphite articles with an amorphous carbon phase at the surface |
| JP2678472B2 (ja) * | 1988-09-13 | 1997-11-17 | 宇宙開発事業団 | パッキン装置 |
| US5370405A (en) | 1991-08-30 | 1994-12-06 | Nippon Pillar Packing Co., Ltd. | Packing |
| US5225262A (en) | 1991-04-29 | 1993-07-06 | A. W. Chesterton Co. | Braided high-temperature packing comprising a core of folded flexible graphite sheet |
| JP2769523B2 (ja) * | 1994-01-31 | 1998-06-25 | 株式会社キッツ | パッキンリングの構造とその製造方法並びにそれを用いたシール装置 |
| US5419568A (en) * | 1992-11-06 | 1995-05-30 | Seal Company Of New England, Inc. | Method and apparatus for reducing packing ring spin for trapezoidally shaped mechanically braided packing |
| GB2287772A (en) | 1994-03-10 | 1995-09-27 | Raymond George Coughlin | Gate valve stem sealing arrangement |
| US5806858A (en) | 1996-03-22 | 1998-09-15 | Garlock, Inc. | Compact five ring stuffing box packing assembly |
-
1998
- 1998-09-14 US US09/152,768 patent/US6182974B1/en not_active Expired - Lifetime
-
1999
- 1999-09-06 AR ARP990104475A patent/AR020396A1/es unknown
- 1999-09-08 PE PE1999000905A patent/PE20000838A1/es not_active Application Discontinuation
- 1999-09-08 CO CO99056735A patent/CO5021179A1/es unknown
- 1999-09-09 JP JP2000570483A patent/JP4693991B2/ja not_active Expired - Fee Related
- 1999-09-09 KR KR1020017003315A patent/KR100671245B1/ko not_active Expired - Fee Related
- 1999-09-09 AU AU59171/99A patent/AU5917199A/en not_active Abandoned
- 1999-09-09 EP EP99946853A patent/EP1114265B1/en not_active Expired - Lifetime
- 1999-09-09 WO PCT/US1999/020761 patent/WO2000015981A1/en not_active Ceased
- 1999-09-09 DE DE69925611T patent/DE69925611T2/de not_active Expired - Lifetime
- 1999-09-09 BR BR9913965-0A patent/BR9913965A/pt not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| AU5917199A (en) | 2000-04-03 |
| JP2002525510A (ja) | 2002-08-13 |
| KR100671245B1 (ko) | 2007-01-18 |
| WO2000015981A1 (en) | 2000-03-23 |
| EP1114265A1 (en) | 2001-07-11 |
| PE20000838A1 (es) | 2000-09-07 |
| BR9913965A (pt) | 2002-01-15 |
| KR20010075113A (ko) | 2001-08-09 |
| DE69925611D1 (de) | 2005-07-07 |
| JP4693991B2 (ja) | 2011-06-01 |
| AR020396A1 (es) | 2002-05-08 |
| US6182974B1 (en) | 2001-02-06 |
| EP1114265B1 (en) | 2005-06-01 |
| CO5021179A1 (es) | 2001-03-27 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 8364 | No opposition during term of opposition |