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Melbourne, FL, US
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Patents Grants
last 30 patents
Information
Patent Grant
Integrated cocot and regulated paystation telephone system
Patent number
5,311,582
Issue date
May 10, 1994
International Teleservice Corporation
Marcus K. Davenport
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Circuit for firing paystation coin relay using power derived from t...
Patent number
5,216,707
Issue date
Jun 1, 1993
International Teleservice Corp.
Marcus K. Davenport
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Coin fraud preventing unit and modular configurations for pay telep...
Patent number
RE34200
Issue date
Mar 23, 1993
International Teleservice, Inc.
Allen W. Vogl
379 - Telephonic communications
Information
Patent Grant
Answer supervision circuit for paystation telephone with non-muted...
Patent number
5,187,739
Issue date
Feb 16, 1993
International Teleservice Corp.
Marcus K. Davenport
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Coinless telephone reinforcing plate
Patent number
5,133,528
Issue date
Jul 28, 1992
International Teleservice Corporation
Allen W. Vogl
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Pay telephone station repair technician's adapter
Patent number
5,108,315
Issue date
Apr 28, 1992
International Teleservice Corporation
Allen W. Vogl
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Coin fraud prevention unit and modular configurations for pay telep...
Patent number
5,007,079
Issue date
Apr 9, 1991
International Teleservice Corporation
Allen W. Vogl
G07 - CHECKING-DEVICES
Information
Patent Grant
Coin fraud preventing unit and modular configurations for pay telep...
Patent number
4,918,724
Issue date
Apr 17, 1990
International Teleservice Corporation
Allen W. Vogl
G07 - CHECKING-DEVICES
Patents Applications
last 30 patents
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