CH552326A - Widerstandsheizmatte. - Google Patents
Widerstandsheizmatte.Info
- Publication number
- CH552326A CH552326A CH167673A CH167673A CH552326A CH 552326 A CH552326 A CH 552326A CH 167673 A CH167673 A CH 167673A CH 167673 A CH167673 A CH 167673A CH 552326 A CH552326 A CH 552326A
- Authority
- CH
- Switzerland
- Prior art keywords
- resistance heating
- heating mat
- mat
- resistance
- heating
- Prior art date
Links
- 238000010438 heat treatment Methods 0.000 title 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
- F24D13/00—Electric heating systems
- F24D13/02—Electric heating systems solely using resistance heating, e.g. underfloor heating
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/12—Layered products comprising a layer of synthetic resin next to a fibrous or filamentary layer
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/06—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material
- B32B27/08—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/32—Layered products comprising a layer of synthetic resin comprising polyolefins
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/36—Layered products comprising a layer of synthetic resin comprising polyesters
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B3/00—Ohmic-resistance heating
- H05B3/10—Heating elements characterised by the composition or nature of the materials or by the arrangement of the conductor
- H05B3/12—Heating elements characterised by the composition or nature of the materials or by the arrangement of the conductor characterised by the composition or nature of the conductive material
- H05B3/14—Heating elements characterised by the composition or nature of the materials or by the arrangement of the conductor characterised by the composition or nature of the conductive material the material being non-metallic
- H05B3/146—Conductive polymers, e.g. polyethylene, thermoplastics
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B3/00—Ohmic-resistance heating
- H05B3/20—Heating elements having extended surface area substantially in a two-dimensional plane, e.g. plate-heater
- H05B3/34—Heating elements having extended surface area substantially in a two-dimensional plane, e.g. plate-heater flexible, e.g. heating nets or webs
- H05B3/342—Heating elements having extended surface area substantially in a two-dimensional plane, e.g. plate-heater flexible, e.g. heating nets or webs heaters used in textiles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2260/00—Layered product comprising an impregnated, embedded, or bonded layer wherein the layer comprises an impregnation, embedding, or binder material
- B32B2260/04—Impregnation, embedding, or binder material
- B32B2260/046—Synthetic resin
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
- B32B2262/10—Inorganic fibres
- B32B2262/106—Carbon fibres, e.g. graphite fibres
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2307/00—Properties of the layers or laminate
- B32B2307/30—Properties of the layers or laminate having particular thermal properties
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2323/00—Polyalkenes
- B32B2323/04—Polyethylene
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B2203/00—Aspects relating to Ohmic resistive heating covered by group H05B3/00
- H05B2203/011—Heaters using laterally extending conductive material as connecting means
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B2203/00—Aspects relating to Ohmic resistive heating covered by group H05B3/00
- H05B2203/017—Manufacturing methods or apparatus for heaters
-
- 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
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
-
- 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
- Y10T428/23907—Pile or nap type surface or component
- Y10T428/23929—Edge feature or configured or discontinuous surface
-
- 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
- Y10T428/23907—Pile or nap type surface or component
- Y10T428/23979—Particular backing structure or composition
-
- 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
- Y10T428/23907—Pile or nap type surface or component
- Y10T428/23986—With coating, impregnation, or bond
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Surface Heating Bodies (AREA)
- Non-Adjustable Resistors (AREA)
- Laminated Bodies (AREA)
- Resistance Heating (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1972015876U JPS522915Y2 (ja) | 1972-02-09 | 1972-02-09 |
Publications (1)
Publication Number | Publication Date |
---|---|
CH552326A true CH552326A (de) | 1974-07-31 |
Family
ID=11900979
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CH167673A CH552326A (de) | 1972-02-09 | 1973-02-05 | Widerstandsheizmatte. |
Country Status (9)
Country | Link |
---|---|
US (1) | US3839134A (ja) |
JP (1) | JPS522915Y2 (ja) |
CA (1) | CA970018A (ja) |
CH (1) | CH552326A (ja) |
DE (1) | DE2306271A1 (ja) |
FR (1) | FR2171355B1 (ja) |
GB (1) | GB1383162A (ja) |
IT (1) | IT996063B (ja) |
NL (1) | NL7301428A (ja) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3922465A1 (de) * | 1988-07-08 | 1990-01-11 | Nippon Basic Technology Lab | Elektrische heizvorrichtung fuer bodenbelaege und dergleichen und bodenbelag mit eingebetteter elektrischer heizvorrichtung |
DE102006048920B3 (de) * | 2006-10-10 | 2008-05-21 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Elektrisch leitendes Leichtbauteil und Verfahren zu seiner Herstellung |
Families Citing this family (46)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2356336A1 (fr) * | 1976-06-25 | 1978-01-20 | Licentia Gmbh | Element chauffant a resistance electrique destine a etre utilise notamment sur des profiles d'avions ou sur des pales de rotors d'helicopteres |
FR2321815A1 (fr) * | 1976-08-03 | 1977-03-18 | Raychem Corp | Dispositif de chauffage electrique contenant des elements a coefficient de temperature positif |
US4250397A (en) * | 1977-06-01 | 1981-02-10 | International Paper Company | Heating element and methods of manufacturing therefor |
US4250398A (en) * | 1978-03-03 | 1981-02-10 | Delphic Research Laboratories, Inc. | Solid state electrically conductive laminate |
FR2471116A1 (fr) * | 1979-12-07 | 1981-06-12 | Camus Raymond | Panneau de construction chauffant |
US4442139A (en) * | 1979-12-11 | 1984-04-10 | Raychem Corporation | Elements comprising fibrous materials |
DE3067901D1 (en) * | 1979-12-11 | 1984-06-20 | Raychem Corp | Conductive element and process for making the same |
JPS5792777A (en) * | 1980-11-29 | 1982-06-09 | Sekisui Chemical Co Ltd | Method of producing panel heater |
FR2526132A1 (fr) * | 1982-05-03 | 1983-11-04 | Vasseur Georges | Complexe de chauffage mixte, notamment pour installation de chauffage par exemple dans le batiment |
KR890003052B1 (ko) * | 1983-03-16 | 1989-08-19 | 칫소 엔지니어링 가부시끼 가이샤 | 띠형 전기발열장치 |
US4532164A (en) * | 1983-09-15 | 1985-07-30 | Raychem Corporation | Heat-shrinkable article |
US4719335A (en) * | 1984-01-23 | 1988-01-12 | Raychem Corporation | Devices comprising conductive polymer compositions |
US4761541A (en) * | 1984-01-23 | 1988-08-02 | Raychem Corporation | Devices comprising conductive polymer compositions |
DE3433702A1 (de) * | 1984-09-13 | 1986-03-20 | Buchtal Gmbh, 8472 Schwarzenfeld | Wand-, decken- und/oder bodenausbildung sowie verfahren zu ihrer herstellung |
EP0175550A1 (en) * | 1984-09-14 | 1986-03-26 | RAYCHEM CORPORATION (a California corporation) | Sheet heaters having dissociated insulation |
US4777351A (en) * | 1984-09-14 | 1988-10-11 | Raychem Corporation | Devices comprising conductive polymer compositions |
SE458083B (sv) * | 1985-05-07 | 1989-02-20 | Lg Innovations Ab | Elradiator och anvaendning av densamma |
GB2182413B (en) * | 1985-11-04 | 1989-12-06 | Lee Fisher Robinson | Improvements relating to protection of pipelines and fluid containers |
FI81709C (fi) * | 1985-11-14 | 1990-11-12 | Ahlstroem Oy | Foerfarande foer framstaellning av en motstaondskiva av plast och motstaondsskiva. |
GB2196215B (en) * | 1986-10-15 | 1991-01-09 | Jong Tsuen Lin | Structure of electric heater |
DE3635286A1 (de) * | 1986-10-16 | 1988-04-21 | Lentia Gmbh | Flaechenheizelement und verfahren zu dessen herstellung |
CA2074487C (en) * | 1990-01-24 | 1995-06-27 | Otis H. Hastings | Electrically conductive laminate for temperature control of surfaces |
KR950013314A (ko) * | 1993-10-13 | 1995-05-17 | 유끼꼬 하야시 | 면상 감열소자 및 그것을 가진 면상 히이터 |
CA2176359C (en) * | 1993-11-30 | 2004-01-27 | David Charles Lawson | An electrically conductive composite heater and method of manufacture |
WO1995017800A1 (fr) * | 1993-12-22 | 1995-06-29 | Proizvodstvenno-Kommercheskaya Firma 'merkuros' | Element chauffant electrique souple |
CA2164399C (en) * | 1994-12-05 | 2000-04-18 | Donald A. Irwin, Sr. | Carpet with fluid barrier |
DE19509153A1 (de) * | 1995-03-14 | 1996-09-19 | Bayerische Motoren Werke Ag | Formkörper mit Heizeinrichtung, insbesondere Außenrückblickspiegel eines Kraftfahrzeugs |
FR2736500A1 (fr) * | 1995-07-03 | 1997-01-10 | Gouthez Philippe | Element chauffant a matrice thermoplastique |
WO1997038555A1 (fr) * | 1996-04-11 | 1997-10-16 | Smolyaninov, Andrei Nikolaevich | Unite de chauffage plane et souple et procede de fabrication |
NZ532691A (en) * | 2004-04-30 | 2006-10-27 | Heating Company Internat Ltd | Slip layer between heating mat and flexible floor covering |
GB2414910A (en) * | 2004-06-05 | 2005-12-07 | John Graham Bryant | Integrated heat generating membrane |
AU2006269207A1 (en) * | 2005-07-12 | 2007-01-18 | Carbonic Heat Corporation | A plate-type heater and a method for the manufacture thereof |
GB2433185B (en) * | 2005-12-06 | 2011-08-10 | Hotfoot Heated Membranes Ltd | Heating element |
CN101012700A (zh) * | 2007-02-01 | 2007-08-08 | 傅晓乐 | 一种红外线电热架空发热地板块及其组合地板 |
DE102007016916A1 (de) * | 2007-04-05 | 2008-10-16 | Schürmann, Petra | Kunststoffdurchtränkte elektrische Widerstandsheizung mit Inverter- oder Konvertertechnologie |
DE102007060961A1 (de) * | 2007-12-14 | 2009-06-18 | Jolly, Jürgen | Entkopplungsschicht |
DE202010005438U1 (de) * | 2010-05-12 | 2011-10-12 | Melitta Haushaltsprodukte Gmbh & Co. Kg | Haushaltsgerät |
GB2500859A (en) * | 2011-11-18 | 2013-10-09 | William John Finch | Flexible panel suitable for under floor heating |
GB201122326D0 (en) * | 2011-12-23 | 2012-02-01 | Exo Technologies Ltd | Component for a building |
US20140069540A1 (en) * | 2012-09-11 | 2014-03-13 | Jean Renee Chesnais | Wrappable sleeve with heating elements and methods of use and construction thereof |
US20150267359A1 (en) * | 2014-03-24 | 2015-09-24 | Rtr Technologies, Inc. | Radiant Heating System for a Surface Structure, and Surface Structure Assembly with Radiant Heater |
DE102014012315A1 (de) * | 2014-08-19 | 2016-02-25 | Friedrich-Wilhelm Struve | Toleranzausgleichendes dünnes flächiges Heizelement |
DE102017001513A1 (de) * | 2017-02-17 | 2018-08-23 | K. L. Kaschier- Und Laminier Gmbh | Streulichtblende eines Bilderfassungsgerätes |
DE102017130463A1 (de) * | 2017-12-19 | 2019-06-19 | Digel Sticktech GmbH u. Co. KG | Flächenheizelement |
CN109253490A (zh) * | 2018-08-07 | 2019-01-22 | 江阴亿霖包装有限公司 | 一种exa低温辐射电热膜的铺装工艺 |
DE102022000645A1 (de) * | 2022-02-22 | 2023-08-24 | Giesecke+Devrient Currency Technology Gmbh | Faserformteil, Verfahren zum Herstellen desselben und Verwendung |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR1430617A (fr) * | 1964-04-09 | 1966-03-04 | Minnesota Mining & Mfg | Articles électroconducteurs à base de fibres fortement carbonées |
FR1428560A (fr) * | 1965-01-04 | 1966-02-18 | Nouvelle plaque chauffante stratifiée | |
FR2022946B1 (ja) * | 1968-11-09 | 1973-03-16 | Kabel Metallwerke Ghh | |
US3657516A (en) * | 1969-11-10 | 1972-04-18 | Kansai Hoon Kogyo Kk | Flexible panel-type heating unit |
GB1315170A (en) * | 1969-11-21 | 1973-04-26 | Kureha Chemical Ind Co Ltd | Planar heat generator and production thereof |
-
1972
- 1972-02-09 JP JP1972015876U patent/JPS522915Y2/ja not_active Expired
-
1973
- 1973-02-01 NL NL7301428A patent/NL7301428A/xx unknown
- 1973-02-05 CH CH167673A patent/CH552326A/xx not_active IP Right Cessation
- 1973-02-05 US US00329416A patent/US3839134A/en not_active Expired - Lifetime
- 1973-02-08 DE DE2306271A patent/DE2306271A1/de active Pending
- 1973-02-08 CA CA163,242A patent/CA970018A/en not_active Expired
- 1973-02-08 GB GB629373A patent/GB1383162A/en not_active Expired
- 1973-02-08 IT IT7348135A patent/IT996063B/it active
- 1973-02-09 FR FR7304639A patent/FR2171355B1/fr not_active Expired
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3922465A1 (de) * | 1988-07-08 | 1990-01-11 | Nippon Basic Technology Lab | Elektrische heizvorrichtung fuer bodenbelaege und dergleichen und bodenbelag mit eingebetteter elektrischer heizvorrichtung |
DE102006048920B3 (de) * | 2006-10-10 | 2008-05-21 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Elektrisch leitendes Leichtbauteil und Verfahren zu seiner Herstellung |
Also Published As
Publication number | Publication date |
---|---|
AU5197673A (en) | 1973-09-13 |
IT996063B (it) | 1975-12-10 |
GB1383162A (en) | 1975-02-05 |
NL7301428A (ja) | 1973-08-13 |
CA970018A (en) | 1975-06-24 |
US3839134A (en) | 1974-10-01 |
JPS522915Y2 (ja) | 1977-01-22 |
JPS4894042U (ja) | 1973-11-10 |
FR2171355B1 (ja) | 1976-04-30 |
DE2306271A1 (de) | 1973-08-16 |
FR2171355A1 (ja) | 1973-09-21 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CH552326A (de) | Widerstandsheizmatte. | |
NL162287C (nl) | Inductieverwarmingsinrichting. | |
NL7206063A (nl) | Verwarmingsinrichting | |
DK135258B (da) | Induktionsopvarmningsapparat. | |
AT328579B (de) | Durchlauferhitzer | |
DK140330B (da) | Induktionsvarmeapparat. | |
AT333909B (de) | Widerstands-heizelement | |
CH548143A (de) | Elektrisches heizelement. | |
CH549762A (de) | Rohrschlangen - durchlauferhitzer. | |
CH556003A (de) | Elektro-heizgeraet. | |
SE389906B (sv) | Konverterbar uppvermningsapparat | |
NL7511493A (nl) | Verwarmingsmat. | |
CH555141A (de) | Elektrisch beheizter etagenbackofen. | |
BE804711A (nl) | Verwarmingselement | |
CH551598A (de) | Heissluftheizung. | |
NL159545B (nl) | Inductieverwarmingsinrichting. | |
ES187198Y (es) | Resistencia calefactora perfeccionada. | |
BE789350A (nl) | Verwamingsinrichting. | |
CH550571A (de) | Elektrisch beheiztes fonduegeraet. | |
ES178740Y (es) | Salvamanteles. | |
ES182622Y (es) | Alfombrilla perfeccionada. | |
ES176562Y (es) | Radiador - convector de calefaccion perfeccionado. | |
CH548485A (de) | Weichenheizung. | |
AT320811B (de) | Heizelement | |
ES180007Y (es) | Radiador de calefaccion. |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PL | Patent ceased |