Mitchell D. Coffin

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Belleville, CA

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Patents Grantslast 30 patents

Information Patent Grant
Establishing call sessions between terminals through plural switch...
- Patent number 6,958,980
- Issue date Oct 25, 2005
- Nortel Networks Limited
- Peter G. Tarle
- H04 - ELECTRIC COMMUNICATION TECHNIQUE

Patents Applicationslast 30 patents

Information Patent Application
Establishing call sessions between terminals through plural switch...
- Publication number 20020075849
- Publication date Jun 20, 2002
- Peter G. Tarle
- H04 - ELECTRIC COMMUNICATION TECHNIQUE