BE785462A - Dispositif capteur d'ondes de pression, piezoelectrique et de structurecontinue - Google Patents
Dispositif capteur d'ondes de pression, piezoelectrique et de structurecontinueInfo
- Publication number
- BE785462A BE785462A BE785462A BE785462A BE785462A BE 785462 A BE785462 A BE 785462A BE 785462 A BE785462 A BE 785462A BE 785462 A BE785462 A BE 785462A BE 785462 A BE785462 A BE 785462A
- Authority
- BE
- Belgium
- Prior art keywords
- piezoelectric
- pressure
- sensor device
- wave sensor
- continuous structural
- Prior art date
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
- G01V1/00—Seismology; Seismic or acoustic prospecting or detecting
- G01V1/16—Receiving elements for seismic signals; Arrangements or adaptations of receiving elements
- G01V1/20—Arrangements of receiving elements, e.g. geophone pattern
- G01V1/201—Constructional details of seismic cables, e.g. streamers
- G01V1/208—Constructional details of seismic cables, e.g. streamers having a continuous structure
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L23/00—Devices or apparatus for measuring or indicating or recording rapid changes, such as oscillations, in the pressure of steam, gas, or liquid; Indicators for determining work or energy of steam, internal-combustion, or other fluid-pressure engines from the condition of the working fluid
- G01L23/08—Devices or apparatus for measuring or indicating or recording rapid changes, such as oscillations, in the pressure of steam, gas, or liquid; Indicators for determining work or energy of steam, internal-combustion, or other fluid-pressure engines from the condition of the working fluid operated electrically
- G01L23/10—Devices or apparatus for measuring or indicating or recording rapid changes, such as oscillations, in the pressure of steam, gas, or liquid; Indicators for determining work or energy of steam, internal-combustion, or other fluid-pressure engines from the condition of the working fluid operated electrically by pressure-sensitive members of the piezoelectric type
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L9/00—Measuring steady of quasi-steady pressure of fluid or fluent solid material by electric or magnetic pressure-sensitive elements; Transmitting or indicating the displacement of mechanical pressure-sensitive elements, used to measure the steady or quasi-steady pressure of a fluid or fluent solid material, by electric or magnetic means
- G01L9/08—Measuring steady of quasi-steady pressure of fluid or fluent solid material by electric or magnetic pressure-sensitive elements; Transmitting or indicating the displacement of mechanical pressure-sensitive elements, used to measure the steady or quasi-steady pressure of a fluid or fluent solid material, by electric or magnetic means by making use of piezoelectric devices, i.e. electric circuits therefor
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10N—ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10N30/00—Piezoelectric or electrostrictive devices
- H10N30/30—Piezoelectric or electrostrictive devices with mechanical input and electrical output, e.g. functioning as generators or sensors
- H10N30/302—Sensors
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10N—ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10N30/00—Piezoelectric or electrostrictive devices
- H10N30/60—Piezoelectric or electrostrictive devices having a coaxial cable structure
-
- 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
- Y10S310/00—Electrical generator or motor structure
- Y10S310/80—Piezoelectric polymers, e.g. PVDF
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Remote Sensing (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Geophysics (AREA)
- Acoustics & Sound (AREA)
- Geology (AREA)
- Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
- Measuring Fluid Pressure (AREA)
- Measuring And Recording Apparatus For Diagnosis (AREA)
- Force Measurement Appropriate To Specific Purposes (AREA)
- Geophysics And Detection Of Objects (AREA)
- Piezo-Electric Transducers For Audible Bands (AREA)
- Transducers For Ultrasonic Waves (AREA)
- Transmission And Conversion Of Sensor Element Output (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7125137A FR2145099A5 (xx) | 1971-07-08 | 1971-07-08 |
Publications (1)
Publication Number | Publication Date |
---|---|
BE785462A true BE785462A (fr) | 1972-12-27 |
Family
ID=9080082
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
BE785462A BE785462A (fr) | 1971-07-08 | 1972-06-27 | Dispositif capteur d'ondes de pression, piezoelectrique et de structurecontinue |
Country Status (13)
Country | Link |
---|---|
US (1) | US3798474A (xx) |
JP (1) | JPS5441233B1 (xx) |
BE (1) | BE785462A (xx) |
CA (1) | CA1001292A (xx) |
DE (1) | DE2233579C2 (xx) |
DK (1) | DK138919C (xx) |
FR (1) | FR2145099A5 (xx) |
GB (1) | GB1354865A (xx) |
IT (1) | IT962500B (xx) |
NL (1) | NL175761C (xx) |
NO (1) | NO134088C (xx) |
SE (1) | SE391584B (xx) |
SU (1) | SU535028A3 (xx) |
Families Citing this family (92)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2233615B1 (xx) * | 1973-06-12 | 1977-05-06 | Gen Dynamics Corp | |
US3987405A (en) * | 1973-12-11 | 1976-10-19 | Institut Francais Du Petrole, Des Carburants Et Lubrifiants Et Entreprise De Recherches Et D'activities Petrolieres Elf | Receiver of continuous structure for seismic prospecting |
FR2271733B1 (xx) * | 1974-05-17 | 1979-08-03 | Inst Francais Du Petrole | |
GB1515287A (en) * | 1974-05-30 | 1978-06-21 | Plessey Co Ltd | Piezoelectric transducers |
JPS5199572A (xx) * | 1975-01-22 | 1976-09-02 | Minnesota Mining & Mfg | |
NL7502453A (nl) * | 1975-03-03 | 1976-09-07 | Philips Nv | Inrichting voor het omzetten van elektrische in akoestische trillingen en omgekeerd, voorzien van een membraan, bevattende tenminste een laag piezo-elektrisch polymeer materiaal. |
FR2320536A1 (fr) * | 1975-08-08 | 1977-03-04 | Sv Sarl Metro Mesures | Piezographe et procede de mise en oeuvre pour l'analyse du fonctionnement d'un moteur diesel |
US4089927A (en) * | 1975-09-26 | 1978-05-16 | Minnesota Mining And Manufacturing Company | Strain sensor employing bi layer piezoelectric polymer |
US4183010A (en) * | 1975-12-08 | 1980-01-08 | Gte Sylvania Incorporated | Pressure compensating coaxial line hydrophone and method |
GB1544856A (en) * | 1976-12-09 | 1979-04-25 | Marconi Co Ltd | Pressure sensitive detectors |
AT375466B (de) * | 1977-07-27 | 1984-08-10 | List Hans | Messwertaufnehmer mit einem piezoelektrischen messelement |
FR2409654B1 (fr) * | 1977-11-17 | 1985-10-04 | Thomson Csf | Dispositif transducteur piezoelectrique et son procede de fabrication |
US4194194A (en) * | 1978-01-30 | 1980-03-18 | The United States Of America As Represented By The Secretary Of The Navy | Piezoelectric vibration detector for sensing a nearby intruder |
US4166229A (en) * | 1978-02-23 | 1979-08-28 | The United States Of America As Represented By The Secretary Of The Navy | Piezoelectric polymer membrane stress gage |
US4376302A (en) * | 1978-04-13 | 1983-03-08 | The United States Of America As Represented By The Secretary Of The Navy | Piezoelectric polymer hydrophone |
US4322877A (en) * | 1978-09-20 | 1982-04-06 | Minnesota Mining And Manufacturing Company | Method of making piezoelectric polymeric acoustic transducer |
JPS5562494A (en) * | 1978-11-05 | 1980-05-10 | Ngk Spark Plug Co | Pieozoelectric converter for electric string instrument |
JPS5825450B2 (ja) * | 1978-11-15 | 1983-05-27 | 三菱油化株式会社 | 生体用トランスジユ−サ |
CA1137210A (en) * | 1979-04-26 | 1982-12-07 | Francis S. Foster | Ultrasonic imaging method and device using one transducer having a line focus aligned with another transducer |
DE2927269C2 (de) * | 1979-07-05 | 1982-10-28 | Siemens AG, 1000 Berlin und 8000 München | Piezoelektrisches Antriebselement für Schreibdüsen in Tintenmosaikschreibeinrichtungen |
US4275658A (en) * | 1979-10-12 | 1981-06-30 | The United States Of America As Represented By The Secretary Of The Army | Safing and arming signature for fuzes |
FR2475804A1 (fr) * | 1980-02-12 | 1981-08-14 | Lewiner Jacques | Perfectionnements aux nappes composites constitutives de transducteurs electromecaniques et aux transducteurs equipes de telles nappes |
US4350917A (en) * | 1980-06-09 | 1982-09-21 | Riverside Research Institute | Frequency-controlled scanning of ultrasonic beams |
DE3267853D1 (en) * | 1981-02-06 | 1986-01-23 | Emi Ltd | Device sensitive to pressure waves |
FR2507424A1 (fr) * | 1981-06-05 | 1982-12-10 | Cgr | Transducteur piezoelectrique autocollant et dispositif de mise en oeuvre du transducteur |
GB2123602B (en) * | 1982-07-06 | 1987-02-25 | Raytheon Co | Piezo electric transducer and method of making same |
US4628928A (en) * | 1982-08-09 | 1986-12-16 | Medtronic, Inc. | Robotic implantable medical device and/or component restoration system |
US4771772A (en) * | 1982-08-09 | 1988-09-20 | Medtronic, Inc. | Robotic implantable medical device and/or component restoration system |
US4799202A (en) * | 1982-09-27 | 1989-01-17 | The United States Of America As Represented By The Secretary Of The Navy | Complementary interferometric hydrophone |
GB8325861D0 (en) * | 1983-09-28 | 1983-11-02 | Syrinx Presicion Instr Ltd | Force transducer |
US4499394A (en) * | 1983-10-21 | 1985-02-12 | Koal Jan G | Polymer piezoelectric sensor of animal foot pressure |
US4629925A (en) * | 1983-11-22 | 1986-12-16 | Raychem Corporation | Piezoelectric coaxial cable |
US4609845A (en) * | 1984-07-06 | 1986-09-02 | Raychem Corporation | Stretched piezoelectric polymer coaxial cable |
WO1986000757A1 (en) * | 1984-07-06 | 1986-01-30 | Raychem Corporation | Piezoelectric coaxial cable |
CA1267216A (en) * | 1984-07-06 | 1990-03-27 | Pravin L. Soni | Piezoelectric device |
GB2166871A (en) * | 1984-09-03 | 1986-05-14 | Vickers Plc | Respiration monitor |
US4568851A (en) * | 1984-09-11 | 1986-02-04 | Raychem Corporation | Piezoelectric coaxial cable having a helical inner conductor |
US4695988A (en) * | 1984-09-12 | 1987-09-22 | Ngk Spark Plug Co. Ltd. | Underwater piezoelectric arrangement |
US4585970A (en) * | 1985-03-11 | 1986-04-29 | Koal Jan G | Flexible piezoelectric switch |
GB8524237D0 (en) * | 1985-10-02 | 1985-11-06 | Raychem Gmbh | Pressure sensor |
US4761005A (en) * | 1985-10-10 | 1988-08-02 | Barry J. French | Sports scoring device including a flexible prezoelectric layer resilient layer |
US4824107A (en) * | 1985-10-10 | 1989-04-25 | French Barry J | Sports scoring device including a piezoelectric transducer |
EP0228832B1 (en) * | 1985-12-05 | 1990-09-05 | Focas Limited | Support member for pressure sensor |
CA1284210C (en) * | 1985-12-05 | 1991-05-14 | Richard John Penneck | Acoustic transducer |
JPS62165500A (ja) * | 1985-12-19 | 1987-07-22 | アメリカン テレフオン アンド テレグラフ カムパニ− | 電気機械変換器と使用法 |
US5024872A (en) * | 1986-02-27 | 1991-06-18 | Raytheon Company | Sheets of stretched and polarized polymer materials and method of manufacturer |
FR2600424B1 (fr) * | 1986-06-23 | 1989-02-17 | Inst Francais Du Petrole | Procede et dispositif pour ameliorer la sensibilite et le rapport du signal au bruit de transducteurs piezo-electriques comportant une pluralite de capteurs combines en parallele |
FR2601132B1 (fr) * | 1986-07-04 | 1989-03-24 | Inst Francais Du Petrole | Dispositif capteur d'ondes de pression du type piezo-electrique a structure continue et procede pour sa fabrication |
FR2603422B1 (fr) * | 1986-08-27 | 1988-12-30 | Inst Francais Du Petrole | Procede pour realiser des capteurs piezo-electriques continus de sensibilite accrue et capteurs realises suivant le procede |
GB8625686D0 (en) * | 1986-10-27 | 1986-11-26 | Ministry Of Agriculture Fisher | Assessing processing strains |
US4797863A (en) * | 1986-12-22 | 1989-01-10 | Honeywell, Inc. | Underwater acoustical transducer |
FR2617659B1 (fr) * | 1987-06-30 | 1990-09-14 | Inst Francais Du Petrole | Transducteur piezo-electrique comportant plusieurs elements sensibles coaxiaux |
US4841494A (en) * | 1987-07-03 | 1989-06-20 | Ngk Spark Plug Co., Ltd. | Underwater piezoelectric arrangement |
US4876675A (en) * | 1987-09-12 | 1989-10-24 | Ngk Spark Plug Co., Ltd. | Towed piezoelectric cable |
FR2625640B1 (fr) * | 1987-12-30 | 1990-06-22 | Inst Francais Du Petrole | Capteur piezo-electrique tubulaire a grande sensibilite |
FR2634088B1 (fr) * | 1988-07-11 | 1991-05-31 | Inst Francais Du Petrole | Capteur piezo-electrique comportant au moins une paire d'elements sensibles souples de grande longueur |
US4954811A (en) * | 1988-11-29 | 1990-09-04 | Pennwalt Corporation | Penetration sensor |
US5448232A (en) * | 1989-05-03 | 1995-09-05 | Mitron Systems Corporation | Roadway sensors and method of installing same |
US5500635A (en) * | 1990-02-20 | 1996-03-19 | Mott; Jonathan C. | Products incorporating piezoelectric material |
US5361240A (en) * | 1990-07-10 | 1994-11-01 | Innovative Transducers Inc. | Acoustic sensor |
US5554907A (en) * | 1992-05-08 | 1996-09-10 | Mitron Systems Corporation | Vehicle speed measurement apparatus |
US5486820A (en) * | 1992-12-18 | 1996-01-23 | The Whitaker Corporation | Traffic sensor having piezoelectric sensors which distinguish lanes |
US5680718A (en) * | 1994-12-20 | 1997-10-28 | First Choice Trading Limited | Illuminable hat |
EP0775894B1 (en) | 1995-11-22 | 2003-06-25 | Snap-On Equipment Limited | Rotational machinery analysis |
US5883857A (en) * | 1996-11-07 | 1999-03-16 | Innovative Transducers Incorporated | Non-liquid filled streamer cable with a novel hydrophone |
US6108267A (en) * | 1996-11-07 | 2000-08-22 | Innovative Transducers, Inc. | Non-liquid filled streamer cable with a novel hydrophone |
US6012822A (en) * | 1996-11-26 | 2000-01-11 | Robinson; William J. | Motion activated apparel flasher |
US6713944B2 (en) * | 2002-01-02 | 2004-03-30 | Omron Corporation | Actuator and method of manufacturing a strain element |
EP1507040A1 (de) * | 2003-08-13 | 2005-02-16 | Heimbach GmbH & Co. | Textilerzeugnis mit einem integrierten Sensor zur Messung von Druck und Temperatur |
GB0320168D0 (en) | 2003-08-28 | 2003-10-01 | Univ Manchester | A sensing device |
US20050127677A1 (en) * | 2003-12-03 | 2005-06-16 | Luttrull Jeffrey K. | Roadway generating electrical power by incorporating piezoelectric materials |
US7180227B2 (en) * | 2004-01-16 | 2007-02-20 | Taiwan Semiconductor Manufacturing Co., Ltd. | Piezoelectric o-ring transducer |
DE102007010145A1 (de) * | 2007-02-28 | 2008-09-11 | W.E.T Automotive Systems Aktiengesellschaft | Elektrischer Leiter |
US7629727B2 (en) * | 2007-12-20 | 2009-12-08 | Honda Motor Co., Ltd. | Scalable tubular mechanical energy harvesting device |
US7902722B2 (en) * | 2008-04-03 | 2011-03-08 | Dvx, Llc | Transducer apparatus for intravascular blood flow measurement |
US20100078090A1 (en) * | 2008-09-29 | 2010-04-01 | Gas Technology Institute | Impact sensing multi-layered plastic material |
US20100288181A1 (en) * | 2008-09-29 | 2010-11-18 | Gas Technology Institute | Impact sensing multi-layered plastic material |
BR112012005842A8 (pt) * | 2009-09-17 | 2018-06-26 | Quantum Tech Sciences Inc Qtsi | método para fazer uma classificação de identidade associado a uma fonte de dados, sistema de sensibilidade responsivo a sinais acústicos ou sísmicos, método para identificar sinais sísmicos ou acústicos de interesse que se originam de veículos de movimento motorizados, método para identificar sinais sísmicos ou acústicos de interesse que se originam do movimento de passos, e, método para identificar sinais sísmicos ou acústicos de interesse que se originam de maquinário fixo ou de movimento |
CN102551725A (zh) * | 2010-12-27 | 2012-07-11 | 深圳市迈迪加科技发展有限公司 | 一种新型呼吸传感器 |
CN102525432A (zh) * | 2010-12-29 | 2012-07-04 | 深圳市迈迪加科技发展有限公司 | 一种心脏功能传感器 |
CN102551706A (zh) * | 2010-12-31 | 2012-07-11 | 深圳市迈迪加科技发展有限公司 | 一种胎音传感器 |
JP6283812B2 (ja) * | 2015-05-29 | 2018-02-28 | 株式会社エスオラボ | 荷重測定装置および荷重測定センサ |
US11428845B2 (en) * | 2015-11-04 | 2022-08-30 | Quantum Technology Sciences, Inc. | System and method for sensing seismic acoustic signals |
WO2017126986A1 (ru) * | 2016-01-19 | 2017-07-27 | Алексей Михайлович КОРОЛЕВ | Инерциальное устройство создания изображений |
WO2017212523A1 (ja) | 2016-06-06 | 2017-12-14 | 株式会社村田製作所 | 菌対策用圧電糸、菌対策用布、布、衣料、医療部材、生体作用圧電糸、および物質吸着用圧電糸 |
EP3536838A4 (en) * | 2016-11-01 | 2020-07-15 | Murata Manufacturing Co., Ltd. | ANTIBACTERIAL FLEECE, ANTIBACTERIAL FABRIC AND ANTIBACTERIAL UPHOLSTERY MATERIAL |
WO2018194180A1 (ja) * | 2017-04-20 | 2018-10-25 | 三井化学株式会社 | 圧電基材、力センサー及びアクチュエータ |
US11616190B2 (en) | 2017-12-22 | 2023-03-28 | B&L Sensor Technologies, Llc | Device and method for sensing underwater sound pressure |
WO2020041403A1 (en) * | 2018-08-22 | 2020-02-27 | Georgia Tech Research Corporation | Flexible sensing interface systems and methods |
RU2717263C1 (ru) * | 2019-06-13 | 2020-03-19 | Федеральное Государственное Унитарное Предприятие "Всероссийский Научно-Исследовательский Институт Автоматики Им.Н.Л.Духова" (Фгуп "Внииа") | Устройство для измерения инфразвуковых колебаний среды |
GB202103374D0 (en) * | 2021-03-11 | 2021-04-28 | Thales Holdings Uk Plc | An acoustic sensor |
CN115598647A (zh) * | 2022-12-13 | 2023-01-13 | 三微电子科技(苏州)有限公司(Cn) | 一种薄膜压电声压传感器和探测成像装置 |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2420864A (en) * | 1943-04-17 | 1947-05-20 | Chilowsky Constantin | Piezoelectric plastic material and method of making same |
US2434143A (en) * | 1943-04-17 | 1948-01-06 | Chilowsky Constantin | Supersonic signal transmitter and receiver |
US2649579A (en) * | 1950-02-01 | 1953-08-18 | Standard Oil Dev Co | Detector for seismic exploration |
US3070775A (en) * | 1959-10-16 | 1962-12-25 | Jr Daniel E Andrews | Electroacoustic piezoelectricpaste transducer |
DE1230576B (de) * | 1964-03-19 | 1966-12-15 | Prakla Gmbh | Zylindrischer magnetostriktiver Schallempfaenger |
FR91705E (fr) * | 1965-05-22 | 1968-08-02 | Inst Francais Du Petrole | Capteurs de pression insensibles aux bruits parasites |
US3325780A (en) * | 1965-10-21 | 1967-06-13 | John J Horan | Flexural transducers |
DE1548376A1 (de) * | 1966-02-12 | 1970-05-21 | Prakla Gmbh | Hydrophon fuer seismische Seemessungen |
US3336573A (en) * | 1966-09-14 | 1967-08-15 | Texaco Inc | Crystal pressure sensitive geophones for use in soft earth |
DE1967130C2 (de) * | 1968-01-25 | 1982-04-01 | Pioneer Electronic Corp., Tokyo | Mechanisch-elektrisch bzw. elektrisch-mechanischer Wandler |
US3604958A (en) * | 1970-05-14 | 1971-09-14 | U S Research Corp | Sensing transducer |
-
1971
- 1971-07-08 FR FR7125137A patent/FR2145099A5/fr not_active Expired
-
1972
- 1972-06-27 BE BE785462A patent/BE785462A/xx not_active IP Right Cessation
- 1972-07-05 US US00269092A patent/US3798474A/en not_active Expired - Lifetime
- 1972-07-06 GB GB3178572A patent/GB1354865A/en not_active Expired
- 1972-07-06 SE SE7208918A patent/SE391584B/xx unknown
- 1972-07-06 CA CA146,550A patent/CA1001292A/fr not_active Expired
- 1972-07-07 DE DE2233579A patent/DE2233579C2/de not_active Expired
- 1972-07-07 SU SU1988743A patent/SU535028A3/ru active
- 1972-07-07 DK DK340672A patent/DK138919C/da not_active IP Right Cessation
- 1972-07-07 NL NLAANVRAGE7209465,A patent/NL175761C/xx not_active IP Right Cessation
- 1972-07-07 IT IT26730/72A patent/IT962500B/it active
- 1972-07-07 NO NO2448/72A patent/NO134088C/no unknown
- 1972-07-08 JP JP6862972A patent/JPS5441233B1/ja active Pending
Also Published As
Publication number | Publication date |
---|---|
NO134088C (xx) | 1976-08-18 |
GB1354865A (en) | 1974-06-05 |
US3798474A (en) | 1974-03-19 |
IT962500B (it) | 1973-12-20 |
DE2233579A1 (de) | 1973-01-25 |
SU535028A3 (ru) | 1976-11-05 |
CA1001292A (fr) | 1976-12-07 |
SE391584B (sv) | 1977-02-21 |
NL175761C (nl) | 1984-12-17 |
JPS5441233B1 (xx) | 1979-12-07 |
NO134088B (xx) | 1976-05-03 |
NL7209465A (xx) | 1973-01-10 |
NL175761B (nl) | 1984-07-16 |
DK138919C (da) | 1979-04-30 |
DE2233579C2 (de) | 1983-06-16 |
FR2145099A5 (xx) | 1973-02-16 |
DK138919B (da) | 1978-11-13 |
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Date | Code | Title | Description |
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RE20 | Patent expired |
Owner name: INSTITUT FRANCAIS DU PETROLE DES CARBURANTS & LUB Effective date: 19920627 |