Jean Lutz

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Pau, FR

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Patents Grantslast 30 patents

Information Patent Grant
Dynamometric measuring device for a drill pipe
- Patent number 5,347,859
- Issue date Sep 20, 1994
- Societe Nationale Elf Aquitaine (Production)
- Henri Henneuse
- G08 - SIGNALLING
Information Patent Grant
Method and apparatus to measure the rate of advance of a drilling t...
- Patent number 4,138,886
- Issue date Feb 13, 1979
- Societe Nationale Elf Aquitaine (Production)
- Jean Lutz
- E21 - EARTH DRILLING MINING