MX168772B - Metodo para producir un medio de almacenamiento de calor de ceramica/metal - Google Patents
Metodo para producir un medio de almacenamiento de calor de ceramica/metalInfo
- Publication number
- MX168772B MX168772B MX012180A MX1218088A MX168772B MX 168772 B MX168772 B MX 168772B MX 012180 A MX012180 A MX 012180A MX 1218088 A MX1218088 A MX 1218088A MX 168772 B MX168772 B MX 168772B
- Authority
- MX
- Mexico
- Prior art keywords
- reaction product
- mother metal
- oxidation reaction
- metal
- oxidant
- Prior art date
Links
- 239000002184 metal Substances 0.000 title abstract 13
- 239000000919 ceramic Substances 0.000 title abstract 3
- 238000005338 heat storage Methods 0.000 title abstract 3
- 238000004519 manufacturing process Methods 0.000 title 1
- 239000007795 chemical reaction product Substances 0.000 abstract 6
- 238000007254 oxidation reaction Methods 0.000 abstract 6
- 239000007800 oxidant agent Substances 0.000 abstract 4
- 230000001590 oxidative effect Effects 0.000 abstract 4
- 238000002844 melting Methods 0.000 abstract 2
- 230000008018 melting Effects 0.000 abstract 2
- 238000006243 chemical reaction Methods 0.000 abstract 1
- 230000000779 depleting effect Effects 0.000 abstract 1
- 230000004927 fusion Effects 0.000 abstract 1
- 238000010438 heat treatment Methods 0.000 abstract 1
- 238000000034 method Methods 0.000 abstract 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D20/00—Heat storage plants or apparatus in general; Regenerative heat-exchange apparatus not covered by groups F28D17/00 or F28D19/00
- F28D20/02—Heat storage plants or apparatus in general; Regenerative heat-exchange apparatus not covered by groups F28D17/00 or F28D19/00 using latent heat
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/622—Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/64—Burning or sintering processes
- C04B35/65—Reaction sintering of free metal- or free silicon-containing compositions
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K5/00—Heat-transfer, heat-exchange or heat-storage materials, e.g. refrigerants; Materials for the production of heat or cold by chemical reactions other than by combustion
- C09K5/02—Materials undergoing a change of physical state when used
- C09K5/06—Materials undergoing a change of physical state when used the change of state being from liquid to solid or vice versa
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D20/00—Heat storage plants or apparatus in general; Regenerative heat-exchange apparatus not covered by groups F28D17/00 or F28D19/00
- F28D20/0056—Heat storage plants or apparatus in general; Regenerative heat-exchange apparatus not covered by groups F28D17/00 or F28D19/00 using solid heat storage material
-
- 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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/14—Thermal energy storage
-
- 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
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/12—All metal or with adjacent metals
- Y10T428/12007—Component of composite having metal continuous phase interengaged with nonmetal continuous phase
-
- 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
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/13—Hollow or container type article [e.g., tube, vase, etc.]
- Y10T428/131—Glass, ceramic, or sintered, fused, fired, or calcined metal oxide or metal carbide containing [e.g., porcelain, brick, cement, etc.]
- Y10T428/1314—Contains fabric, fiber particle, or filament made of glass, ceramic, or sintered, fused, fired, or calcined metal oxide, or metal carbide or other inorganic compound [e.g., fiber glass, mineral fiber, sand, etc.]
-
- 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
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/13—Hollow or container type article [e.g., tube, vase, etc.]
- Y10T428/131—Glass, ceramic, or sintered, fused, fired, or calcined metal oxide or metal carbide containing [e.g., porcelain, brick, cement, etc.]
- Y10T428/1317—Multilayer [continuous layer]
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Thermal Sciences (AREA)
- Physics & Mathematics (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Ceramic Engineering (AREA)
- Mechanical Engineering (AREA)
- Combustion & Propulsion (AREA)
- Inorganic Chemistry (AREA)
- Structural Engineering (AREA)
- Compositions Of Oxide Ceramics (AREA)
- Thermotherapy And Cooling Therapy Devices (AREA)
- Medicinal Preparation (AREA)
- Ceramic Products (AREA)
- Materials For Medical Uses (AREA)
- Table Devices Or Equipment (AREA)
- Other Surface Treatments For Metallic Materials (AREA)
- Chemically Coating (AREA)
- Blow-Moulding Or Thermoforming Of Plastics Or The Like (AREA)
- Manufacture Of Alloys Or Alloy Compounds (AREA)
- Furnace Charging Or Discharging (AREA)
- Central Heating Systems (AREA)
- Fats And Perfumes (AREA)
- Separation By Low-Temperature Treatments (AREA)
Abstract
La presente invención se refiere a un método para producir un medio de almacenamiento de calor de cerámica/metal, que comprende un cuerpo de metal madre y una capa cerámica cohesiva intrínsecamente, formada integralmente con el cuerpo de metal y que encapsula a dicho cuerpo de metal madre, caracterizado porque comprende: (a) calentar un cuerpo de metal madre en presencia de un oxidante a una temperatura por sobre el punto de fusión del metal madre pero por debajo del punto de fusión de su producto de reacción de oxidación formado en el paso (b), para formar metal madre en fusión; y (b) a dicha temperatura, (i) hacer reaccionar el metal madre en fusión con dicho oxidante afuera de la superficie del cuerpo para formar integralmente con el cuerpo de metal madre una capa de producto de reacción de oxidación; (ii) transportar el metal madre en fusión a través del producto de reacción de oxidación hasta contacto con el oxidante de modo que el producto de reacción de oxidación continúe formándose en una interfase entre el oxidante y el producto de reacción de oxidación formado previamente para formar con esto continuamente una capa progresivamente más gruesa de producto de reacción de oxidación hacia afuera de la superficie y agotar concurrentemente el metal en fusión del cuerpo; (iii) continuar la reacción durante un tiempo suficiente para desarrollar la capa progresivamente más gruesa hasta suficiente espesor para encapsular metal madre no reaccionado y tener una cavidad resultante de dicho agotamiento; y (c) recuperar el medio de almacenamiento de calor resultante.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US07/069,732 US4873038A (en) | 1987-07-06 | 1987-07-06 | Method for producing ceramic/metal heat storage media, and to the product thereof |
Publications (1)
Publication Number | Publication Date |
---|---|
MX168772B true MX168772B (es) | 1993-06-07 |
Family
ID=22090869
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
MX012180A MX168772B (es) | 1987-07-06 | 1988-07-05 | Metodo para producir un medio de almacenamiento de calor de ceramica/metal |
Country Status (28)
Country | Link |
---|---|
US (1) | US4873038A (es) |
EP (1) | EP0299903B1 (es) |
JP (1) | JPH01113486A (es) |
KR (1) | KR960000474B1 (es) |
CN (1) | CN1030403A (es) |
AT (1) | ATE84562T1 (es) |
AU (1) | AU603462B2 (es) |
BG (1) | BG60378B1 (es) |
BR (1) | BR8803313A (es) |
CA (1) | CA1318774C (es) |
CS (1) | CS276901B6 (es) |
DD (1) | DD281812A5 (es) |
DE (1) | DE3877444T2 (es) |
DK (1) | DK372588A (es) |
FI (1) | FI93224C (es) |
HU (1) | HUT63130A (es) |
IL (1) | IL86986A (es) |
IN (1) | IN169536B (es) |
MX (1) | MX168772B (es) |
NO (1) | NO176806C (es) |
NZ (1) | NZ225291A (es) |
PH (1) | PH25710A (es) |
PL (1) | PL159873B1 (es) |
PT (1) | PT87915B (es) |
RO (1) | RO101830B1 (es) |
RU (1) | RU1794074C (es) |
YU (1) | YU128688A (es) |
ZA (1) | ZA884789B (es) |
Families Citing this family (36)
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US5202059A (en) * | 1987-06-12 | 1993-04-13 | Lanxide Technology Company, Lp | Coated ceramic filler materials |
US5505248A (en) * | 1990-05-09 | 1996-04-09 | Lanxide Technology Company, Lp | Barrier materials for making metal matrix composites |
WO1991017278A1 (en) * | 1990-05-09 | 1991-11-14 | Lanxide Technology Company, Lp | Barrier materials for making metal matrix composites |
AU643089B2 (en) * | 1991-02-15 | 1993-11-04 | Toa Medical Electronics Co., Ltd. | Apparatus for regulating liquid temperature |
US7175686B2 (en) * | 2003-05-20 | 2007-02-13 | Exxonmobil Research And Engineering Company | Erosion-corrosion resistant nitride cermets |
US7175687B2 (en) * | 2003-05-20 | 2007-02-13 | Exxonmobil Research And Engineering Company | Advanced erosion-corrosion resistant boride cermets |
US7074253B2 (en) * | 2003-05-20 | 2006-07-11 | Exxonmobil Research And Engineering Company | Advanced erosion resistant carbide cermets with superior high temperature corrosion resistance |
US7544228B2 (en) * | 2003-05-20 | 2009-06-09 | Exxonmobil Research And Engineering Company | Large particle size and bimodal advanced erosion resistant oxide cermets |
US7153338B2 (en) * | 2003-05-20 | 2006-12-26 | Exxonmobil Research And Engineering Company | Advanced erosion resistant oxide cermets |
DE10335425B3 (de) | 2003-08-01 | 2004-08-26 | Öko-Insel Energietechnik GmbH | Wärmespeicher |
US7731776B2 (en) | 2005-12-02 | 2010-06-08 | Exxonmobil Research And Engineering Company | Bimodal and multimodal dense boride cermets with superior erosion performance |
DE102006019339B3 (de) * | 2006-04-24 | 2008-01-31 | Henze, Michael, Dipl.-Ing. | Künstlicher Wasser-Wärmespeicher unter der Erde |
US8656712B2 (en) * | 2007-10-03 | 2014-02-25 | Isentropic Limited | Energy storage |
US8323790B2 (en) * | 2007-11-20 | 2012-12-04 | Exxonmobil Research And Engineering Company | Bimodal and multimodal dense boride cermets with low melting point binder |
US20110108020A1 (en) * | 2009-11-11 | 2011-05-12 | Mcenerney Bryan William | Ballast member for reducing active volume of a vessel |
CN102236460B (zh) * | 2010-04-28 | 2013-11-27 | 周正三 | 感测装置、微型触控装置及感测装置的制造方法 |
US8701653B2 (en) * | 2010-06-22 | 2014-04-22 | Alan J. Spero | High energy density thermal storage device and method |
US20120018116A1 (en) * | 2010-07-21 | 2012-01-26 | Terrafore, Inc | Thermal energy storage system comprising encapsulated phase change material |
US20120037337A1 (en) * | 2010-08-16 | 2012-02-16 | Zillmer Andrew J | Heat transfer system, apparatus, and method therefor |
CN102252545A (zh) * | 2011-05-23 | 2011-11-23 | 武汉理工大学 | 一种应用于太阳能空调的熔融盐相变蓄热装置 |
WO2013061978A2 (ja) * | 2011-10-24 | 2013-05-02 | 国立大学法人北海道大学 | 潜熱蓄熱材及び蓄熱体 |
FR2996630B1 (fr) | 2012-10-09 | 2014-12-19 | Commissariat Energie Atomique | Procede de realisation d'un echangeur de chaleur contenant un materiau a changement de phase, echangeur obtenu et utilisations aux hautes temperatures. |
US20140182319A1 (en) * | 2012-12-28 | 2014-07-03 | Arlon J. Hunt | Thermal energy storage for temperature regulation in electric vehicles |
US9650556B2 (en) | 2013-01-24 | 2017-05-16 | Southwest Research Institute | Encapsulation of high temperature molten salts |
US9181838B2 (en) | 2014-04-07 | 2015-11-10 | Ford Global Technologies, Llc | Temperature maintenance and regulation of vehicle exhaust catalyst systems with phase change materials |
US9566552B2 (en) | 2014-04-07 | 2017-02-14 | Ford Global Technologies, Llc | Temperature maintenance and regulation of vehicle exhaust catalyst systems with phase change materials |
JP6526630B2 (ja) * | 2014-04-24 | 2019-06-05 | 国立大学法人北海道大学 | 潜熱蓄熱体、潜熱蓄熱体の製造方法、および、熱交換材料 |
JP2016079351A (ja) * | 2014-10-22 | 2016-05-16 | 株式会社デンソー | 複合蓄熱材 |
US10894907B2 (en) | 2016-05-17 | 2021-01-19 | National University Corporation Hokkaido University | Latent-heat storage body microcapsules and process for producing latent-heat storage body microcapsules |
IT201700073173A1 (it) * | 2017-06-29 | 2018-12-29 | Danieli Off Mecc | Dispositivo di accumulo energetico e relativo metodo di realizzazione |
US11566529B2 (en) | 2017-08-22 | 2023-01-31 | General Electric Company | Turbine component with bounded wear coat |
JP7016109B2 (ja) * | 2018-02-15 | 2022-02-04 | 国立大学法人東海国立大学機構 | 複合構造体、複合構造体の製造方法、及び蓄熱方法 |
CN109443023A (zh) * | 2018-12-19 | 2019-03-08 | 中冶焦耐(大连)工程技术有限公司 | 一种棱锥体松化料层填料 |
EP4019605A4 (en) * | 2019-08-23 | 2023-09-06 | National University Corporation Hokkaido University | MICRO CAPSULES FOR LATENT HEAT STORAGE MATERIALS, METHOD FOR THE PRODUCTION THEREOF, POWDER-CONTAINING MICRO CAPSULES FOR LATENT HEAT STORAGE MATERIALS AND HEAT STORAGE DEVICE WITH THE POWDER |
JP2023172734A (ja) * | 2022-05-24 | 2023-12-06 | 新光電気工業株式会社 | 潜熱蓄熱体及び潜熱蓄熱体の製造方法 |
JP2023172735A (ja) * | 2022-05-24 | 2023-12-06 | 新光電気工業株式会社 | 潜熱蓄熱体及び潜熱蓄熱体の製造方法 |
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US2741822A (en) * | 1951-01-29 | 1956-04-17 | Carborundum Co | Preparation of refractory products |
US3255027A (en) * | 1962-09-07 | 1966-06-07 | Du Pont | Refractory product and process |
US3298842A (en) * | 1963-03-22 | 1967-01-17 | Du Pont | Process for preparing hollow refractory particles |
US3296002A (en) * | 1963-07-11 | 1967-01-03 | Du Pont | Refractory shapes |
US3419404A (en) * | 1964-06-26 | 1968-12-31 | Minnesota Mining & Mfg | Partially nitrided aluminum refractory material |
US3473987A (en) * | 1965-07-13 | 1969-10-21 | Du Pont | Method of making thin-walled refractory structures |
DE1567844A1 (de) * | 1965-08-13 | 1970-10-22 | Tokyo Shibaura Electric Co | Methode zur Herstellung einer gesinterten Masse von Aluminium-Nitrid |
US3421863A (en) * | 1966-03-04 | 1969-01-14 | Texas Instruments Inc | Cermet material and method of making same |
US3437468A (en) * | 1966-05-06 | 1969-04-08 | Du Pont | Alumina-spinel composite material |
US3789096A (en) * | 1967-06-01 | 1974-01-29 | Kaman Sciences Corp | Method of impregnating porous refractory bodies with inorganic chromium compound |
US3473938A (en) * | 1968-04-05 | 1969-10-21 | Du Pont | Process for making high strength refractory structures |
JPS5013205B1 (es) * | 1969-11-08 | 1975-05-17 | ||
US3864154A (en) * | 1972-11-09 | 1975-02-04 | Us Army | Ceramic-metal systems by infiltration |
US3973977A (en) * | 1973-11-01 | 1976-08-10 | Corning Glass Works | Making spinel and aluminum-base metal cermet |
JPS5426014A (en) * | 1977-07-29 | 1979-02-27 | Fuji Giken Kogyo | Vacuum block |
US4146057A (en) * | 1977-11-07 | 1979-03-27 | Rockwell International Corporation | Thermal buffer system |
US4512388A (en) * | 1981-06-19 | 1985-04-23 | Institute Of Gas Technology | High-temperature direct-contact thermal energy storage using phase-change media |
DE3210370C2 (de) * | 1982-02-11 | 1984-04-12 | Walter Dr. 5902 Unglinghausen Helmbold | Langzeit-Wärmespeicher |
EP0116809B1 (en) * | 1983-02-16 | 1990-05-02 | MOLTECH Invent S.A. | Cermets and their manufacture |
NZ211405A (en) * | 1984-03-16 | 1988-03-30 | Lanxide Corp | Producing ceramic structures by oxidising liquid phase parent metal with vapour phase oxidising environment; certain structures |
NZ212704A (en) * | 1984-07-20 | 1989-01-06 | Lanxide Corp | Producing self-supporting ceramic structure |
US4851375A (en) * | 1985-02-04 | 1989-07-25 | Lanxide Technology Company, Lp | Methods of making composite ceramic articles having embedded filler |
JPS6212678A (ja) * | 1985-02-04 | 1987-01-21 | ランキサイド テクノロジー カンパニー,リミティド パートナーシップ | 複合セラミック体の製造方法 |
US4657067A (en) * | 1985-06-19 | 1987-04-14 | Ohio State University | Hypereutectic direct-contact thermal storage material and method of production thereof |
MX164959B (es) * | 1986-05-08 | 1992-10-09 | Lanxide Tecnology Company Lp | Un metodo para producir un cuerpo compuesto ceramico |
US4923832A (en) * | 1986-05-08 | 1990-05-08 | Lanxide Technology Company, Lp | Method of making shaped ceramic composites with the use of a barrier |
-
1987
- 1987-07-06 US US07/069,732 patent/US4873038A/en not_active Expired - Fee Related
-
1988
- 1988-07-01 YU YU01286/88A patent/YU128688A/xx unknown
- 1988-07-01 AU AU18623/88A patent/AU603462B2/en not_active Ceased
- 1988-07-01 IN IN542/CAL/88A patent/IN169536B/en unknown
- 1988-07-01 NO NO882937A patent/NO176806C/no unknown
- 1988-07-04 BR BR8803313A patent/BR8803313A/pt not_active Application Discontinuation
- 1988-07-04 CS CS884848A patent/CS276901B6/cs unknown
- 1988-07-04 PH PH37163A patent/PH25710A/en unknown
- 1988-07-04 DD DD88317545A patent/DD281812A5/de not_active IP Right Cessation
- 1988-07-04 IL IL86986A patent/IL86986A/xx not_active IP Right Cessation
- 1988-07-05 BG BG84765A patent/BG60378B1/bg unknown
- 1988-07-05 MX MX012180A patent/MX168772B/es unknown
- 1988-07-05 PL PL1988273535A patent/PL159873B1/pl unknown
- 1988-07-05 RO RO1988134374A patent/RO101830B1/ro unknown
- 1988-07-05 RU SU884356002A patent/RU1794074C/ru active
- 1988-07-05 AT AT88630122T patent/ATE84562T1/de not_active IP Right Cessation
- 1988-07-05 EP EP88630122A patent/EP0299903B1/en not_active Expired - Lifetime
- 1988-07-05 ZA ZA884789A patent/ZA884789B/xx unknown
- 1988-07-05 CN CN88104148A patent/CN1030403A/zh active Pending
- 1988-07-05 HU HU883523A patent/HUT63130A/hu unknown
- 1988-07-05 NZ NZ225291A patent/NZ225291A/xx unknown
- 1988-07-05 DE DE8888630122T patent/DE3877444T2/de not_active Expired - Fee Related
- 1988-07-05 PT PT87915A patent/PT87915B/pt not_active IP Right Cessation
- 1988-07-05 DK DK372588A patent/DK372588A/da not_active Application Discontinuation
- 1988-07-06 CA CA000571327A patent/CA1318774C/en not_active Expired - Fee Related
- 1988-07-06 FI FI883227A patent/FI93224C/fi not_active IP Right Cessation
- 1988-07-06 KR KR1019880008455A patent/KR960000474B1/ko not_active IP Right Cessation
- 1988-07-06 JP JP63168656A patent/JPH01113486A/ja active Pending
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