Christian Dupillier

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Brignoud, FR

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Patents Grantslast 30 patents

Information Patent Grant
Telephone system with several terminals on a single line
- Patent number 5,119,418
- Issue date Jun 2, 1992
- Dolphin Integration
- Christian Dupillier
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Telephone interface circuit
- Patent number 5,005,199
- Issue date Apr 2, 1991
- Dolphin Integration
- Christian Dupillier
- H04 - ELECTRIC COMMUNICATION TECHNIQUE