David F. Hayes

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Webster, NY, US

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Patents Grantslast 30 patents

Information Patent Grant
Cellular mobile telephone system and method
- Patent number 4,829,554
- Issue date May 9, 1989
- Harris Corporation
- Michael Barnes
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Programmable frequency and signalling format tone frequency encoder...
- Patent number 4,320,522
- Issue date Mar 16, 1982
- Harris Corporation
- David F. Hayes
- H04 - ELECTRIC COMMUNICATION TECHNIQUE