Salvatore J. Trentino

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San Anselmo, CA, US

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Patents Grantslast 30 patents

Information Patent Grant
Phase inverter selection apparatus for tone alteration in a tube-ty...
- Patent number 5,550,508
- Issue date Aug 27, 1996
- Salvatore J. Trentino
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Output power selection apparatus for a tube-type audio amplifier
- Patent number 5,550,509
- Issue date Aug 27, 1996
- Salvatore J. Trentino
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Output tube bias selection apparatus for tone alteration in a tube-...
- Patent number 5,546,046
- Issue date Aug 13, 1996
- Salvatore J. Trentino
- H03 - BASIC ELECTRONIC CIRCUITRY