William M. Wollet

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Huntsville, AL, US

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Patents Grantslast 30 patents

Information Patent Grant
Electronic trigger for prepay type telephone paystations
- Patent number 4,988,860
- Issue date Jan 29, 1991
- Palco Telecom Inc.
- William M. Wollet
- G07 - CHECKING-DEVICES
Information Patent Grant
Coin receiving mechanism having a slideable door to prevent coin in...
- Patent number 4,660,706
- Issue date Apr 28, 1987
- GTE Communication Systems Corporation
- William M. Wollet
- G07 - CHECKING-DEVICES