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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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Noise detecting circuit
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Patent number 4,063,180
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Issue date Dec 13, 1977
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GTE Automatic Electric (Canada) Ltd.
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Stanley R. C. Norman
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G01 - MEASURING TESTING
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Sense point circuit
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Patent number 4,041,327
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Issue date Aug 9, 1977
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GTE Automatic Electric (Canada) Ltd.
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Robert M. Thomas
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H03 - BASIC ELECTRONIC CIRCUITRY
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Balanced tone application system
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Patent number 4,025,727
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Issue date May 24, 1977
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GTE Automatic Electric (Canada) Limited
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George Verbaas
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H04 - ELECTRIC COMMUNICATION TECHNIQUE
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Sense amplifier
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Patent number 3,976,952
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Issue date Aug 24, 1976
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GTE Automatic Electric (Canada) Limited
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David M. Shaver
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G11 - INFORMATION STORAGE
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Active hybrid circuit
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Patent number 3,970,805
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Issue date Jul 20, 1976
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GTE Automatic Electric (Canada) Limited
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Robert M. Thomas
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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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