Mathieu Schneider

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Burnaby, CA

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Patents Grantslast 30 patents

Information Patent Grant
Systems and methods for generating tones for operating telephones
- Patent number 6,940,974
- Issue date Sep 6, 2005
- Clifford J. August
- H04 - ELECTRIC COMMUNICATION TECHNIQUE

Patents Applicationslast 30 patents

Information Patent Application
Systems and methods for generating tones for operating telephones
- Publication number 20030108188
- Publication date Jun 12, 2003
- Clifford J. August
- H04 - ELECTRIC COMMUNICATION TECHNIQUE