Marc V. A. Lepretre

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Bois-Colombes, FR

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Patents Grantslast 30 patents

Information Patent Grant
Remote controlled aircraft, in particular for surveillance or inspe...
- Patent number 6,634,593
- Issue date Oct 21, 2003
- Bertin Technologies
- Marc Lepretre
- B64 - AIRCRAFT AVIATION COSMONAUTICS
Information Patent Grant
Device for providing a rigid mechanical link with frequency cut-off
- Patent number 5,568,847
- Issue date Oct 29, 1996
- Bertin & Cie
- Jean-Claude Guilloud
- B64 - AIRCRAFT AVIATION COSMONAUTICS
Information Patent Grant
High-pressure sealing device between two elements in relative motion
- Patent number 5,092,609
- Issue date Mar 3, 1992
- Berlen & Cie
- Lucien D. Balzano
- F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
Information Patent Grant
Mixer-ejector with jet effect and variable cross-section
- Patent number 4,586,873
- Issue date May 6, 1986
- Bertin & Cie
- Marc V. A. Lepretre
- F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
Information Patent Grant
Method for extracting packing rings from a stuffing-box using a liq...
- Patent number 4,473,934
- Issue date Oct 2, 1984
- Sereg, S.A.
- Jean-Yves Marsac
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Sealing device for hydraulic piston mechanism
- Patent number 4,233,886
- Issue date Nov 18, 1980
- Bertin & Cie
- Lucien D. Balzano
- F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...

Patents Applicationslast 30 patents

Information Patent Application
Remote controlled aircraft, in particular for surveillance or inspe...
- Publication number 20030025032
- Publication date Feb 6, 2003
- Bertin Technologies
- Marc Lepretre
- B64 - AIRCRAFT AVIATION COSMONAUTICS