Tresness; Andrew F.

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Syracuse, NY, US

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Patents Grantslast 30 patents

Information Patent Grant
Television signal enhancement and scrambling system
- Patent number RE34720
- Issue date Sep 6, 1994
- Tresness; Andrew F.
- Martin L. Zelenz
- 380 - Cryptography
Information Patent Grant
Narrow band notch filter with extended passband
- Patent number 5,157,362
- Issue date Oct 20, 1992
- Tresness; Andrew F.
- Martin L. Zelenz
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Television signal enhancement and scrambling system
- Patent number 5,022,078
- Issue date Jun 4, 1991
- Tresness; Andrew F.
- Martin L. Zelenz
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Compact filter having a multi-compartment housing
- Patent number 4,901,043
- Issue date Feb 13, 1990
- Tresness; Andrew F.
- Raymond W. Palinkas
- H03 - BASIC ELECTRONIC CIRCUITRY