AASTRA AEROSPACE INC

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DOWNSVIEW, CA

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Patents Grantslast 30 patents

Information Patent Grant
Method and apparatus for supporting spontaneous call waiting identi...
- Patent number 5,812,649
- Issue date Sep 22, 1998
- Aastra Aerospace Inc.
- Anthony P. Shen
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Interrupted tone converter
- Patent number 5,764,758
- Issue date Jun 9, 1998
- Aastra Aerospace Inc.
- Anthony P. Shen
- H04 - ELECTRIC COMMUNICATION TECHNIQUE

Patents Applicationslast 30 patents

Trademarklast 30 trademarks

Information Trademark
74396646 - RING SELECTOR
- Serial number 74396646
- Registration number 2312082
- Filing date Jun 1, 1993
- AASTRA CORPORATION
- 9 - Scientific, nautical, surveying, photographic, cinematographic, optical, weighing, measuring, signalling, checking (supervision), life-saving and teaching apparatus and instruments