Joel Serge Colardelle

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Creteil, FR

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Patents Grantslast 30 patents

Information Patent Grant
Ringing circuit for telephone subset, designed as an integrated cir...
- Patent number 4,496,798
- Issue date Jan 29, 1985
- International Standard Electric Corporation
- Joel S. G. Colardelle
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Analog-to-digital converter
- Patent number 4,325,055
- Issue date Apr 13, 1982
- International Standard Electric Corporation
- Joel S. Colardelle
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Electronic dipole for looping a telephone line
- Patent number 4,037,120
- Issue date Jul 19, 1977
- International Standard Electric Corporation
- Joel Serge Colardelle
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Electronic feeding bridge
- Patent number 3,943,432
- Issue date Mar 9, 1976
- International Standard Electric Corporation
- Joel Serge Colardelle
- H04 - ELECTRIC COMMUNICATION TECHNIQUE