Joseph F. M. Darveau

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Aylmer, CA

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Patents Grantslast 30 patents

Information Patent Grant
Method of providing d.c. feed to a telephone line
- Patent number 5,511,118
- Issue date Apr 23, 1996
- Northern Telecom Limited
- Stanley A. Gores
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Protection and recovery of telephone line interface circuits
- Patent number 5,390,231
- Issue date Feb 14, 1995
- Northern Telecom Limited
- Paul F. Hung
- H04 - ELECTRIC COMMUNICATION TECHNIQUE