Clifford J. August

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Vancouver B.C., CA

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Patents Grantslast 30 patents

Information Patent Grant
Systems and methods for generating telephony dial tones
- Patent number 7,801,287
- Issue date Sep 21, 2010
- Clifford J. August
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Socket/plug in DTMF tone dialer
- Patent number 6,961,425
- Issue date Nov 1, 2005
- Clifford J. August
- H04 - ELECTRIC COMMUNICATION TECHNIQUE