Anthony L. Mazzarini

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San Jose, CA, US

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Patents Grantslast 30 patents

Information Patent Grant
Parallel handset on-hook/off-hook detection by software-based signa...
- Patent number 6,687,344
- Issue date Feb 3, 2004
- PCTEL,Inx.
- Chien-Cheng Tung
- H04 - ELECTRIC COMMUNICATION TECHNIQUE