Roger Cholez

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La Chapelle, FR

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Patents Grantslast 30 patents

Information Patent Grant
System for the multiplexed transmission of signals from seismic rec...
- Patent number 3,986,162
- Issue date Oct 12, 1976
- Societe D'Etudes, Recherches Et Constructions Electroniques Sercel
- Roger Cholez
- G01 - MEASURING TESTING