Andre Chataignon

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Argenteuil, FR

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Patents Grantslast 30 patents

Information Patent Grant
Telephone set with on-hook line seizure
- Patent number 5,155,764
- Issue date Oct 13, 1992
- Alcatel Business Systems
- Claude Malaurie
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Separation and balance device for telephone exchanges
- Patent number 4,292,479
- Issue date Sep 29, 1981
- Le Materiel Telephonique Thomson-CSF
- Andre Chataignon
- H04 - ELECTRIC COMMUNICATION TECHNIQUE