David P. Giammarrusco

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Bartlett, IL, US

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Patents Grantslast 30 patents

Information Patent Grant
Speech synthesized telephone answering circuit
- Patent number 4,585,907
- Issue date Apr 29, 1986
- GTE Automatic Electric Incorporated
- David P. Giammarrusco
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Speech synthesized time announcement circuit
- Patent number 4,547,630
- Issue date Oct 15, 1985
- GTE Automatic Electric Incorporated
- David P. Giammarrusco
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Pulse monitor circuit for use as a fan speed monitor
- Patent number 4,513,233
- Issue date Apr 23, 1985
- GTE Automatic Electric Incorporated
- David P. Giammarrusco
- G01 - MEASURING TESTING