Edward A. Marheine

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Brookfield, WI, US

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Patents Grantslast 30 patents

Information Patent Grant
Billing interface circuit
- Patent number 4,255,621
- Issue date Mar 10, 1981
- GTE Automatic Electric Laboratories, Incorporated
- Edward A. Marheine
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Automatic call transmitter of the dual tone multifrequency type
- Patent number 4,007,333
- Issue date Feb 8, 1977
- GTE Automatic Electric Laboratories Incorporated
- Edward A. Marheine
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Intercept arrangement for key telephone systems
- Patent number 3,965,304
- Issue date Jun 22, 1976
- GTE Automatic Electric Laboratories Incorporated
- Edward A. Marheine
- H04 - ELECTRIC COMMUNICATION TECHNIQUE