William H. Havanas

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Reynoldsburg, OH, US

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Patents Grantslast 30 patents

Information Patent Grant
Key telephone management system
- Patent number 4,905,274
- Issue date Feb 27, 1990
- American Telephone and Telegraph Company AT&T Bell Laboratories
- Bret A. Cooper
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Interexchange carrier automatic route selection system
- Patent number 4,866,763
- Issue date Sep 12, 1989
- American Telephone and Telegraph Company, AT&T Bell Laboratories
- Bret A. Cooper
- H04 - ELECTRIC COMMUNICATION TECHNIQUE