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Ringing signal generator
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Patent number 4,282,410
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Issue date Aug 4, 1981
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GTE Automatic Electric Labs Inc.
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John A. Gauthier
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H04 - ELECTRIC COMMUNICATION TECHNIQUE
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Ringing signal generator
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Patent number 4,239,941
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Issue date Dec 16, 1980
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GTE Automatic Electric Laboratories Incorporated
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John A. Gauthier
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H04 - ELECTRIC COMMUNICATION TECHNIQUE
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Control point driver circuit
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Patent number 4,085,294
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Issue date Apr 18, 1978
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GTE Automatic Electric (Canada) Ltd.
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Robert M. Thomas
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H04 - ELECTRIC COMMUNICATION TECHNIQUE
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Di-phase pulse receiving system
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Patent number 4,078,204
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Issue date Mar 7, 1978
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GTE Automatic Electric (Canada) Limited
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John A. Gauthier
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H04 - ELECTRIC COMMUNICATION TECHNIQUE
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Time shared TCMF and MF decoder
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Patent number 3,941,938
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Issue date Mar 2, 1976
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GTE Automatic Electric (Canada) Limited
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John A. Gauthier
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H04 - ELECTRIC COMMUNICATION TECHNIQUE
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Dial pulse receiver
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Patent number 3,941,937
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Issue date Mar 2, 1976
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GTE Automatic Electric (Canada) Limited
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John A. Gauthier
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H04 - ELECTRIC COMMUNICATION TECHNIQUE
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Electronic side of line detector
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Patent number 3,939,308
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Issue date Feb 17, 1976
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GTE Automatic Electric (Canada) Limited
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David M. Shaver
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H04 - ELECTRIC COMMUNICATION TECHNIQUE
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