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Terence N. Thomas
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Nepean, CA
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last 30 patents
Information
Patent Grant
Speaker drive arrangement for loudspeaker telephone
Patent number
5,027,392
Issue date
Jun 25, 1991
Northern Telecom Limited
Terence N. Thomas
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Digital key telephone system
Patent number
5,027,345
Issue date
Jun 25, 1991
Northern Telecom Limited
Timothy J. Littlewood
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Digital key telephone system
Patent number
4,893,310
Issue date
Jan 9, 1990
Northern Telecom Limited
David J. Robertson
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Digital line receiver
Patent number
4,679,209
Issue date
Jul 7, 1987
Northern Telecom Limited
John G. Hogeboom
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
Phase locked loop variable oscillator with switched capacitors
Patent number
4,539,531
Issue date
Sep 3, 1985
Northern Telecom Limited
Terence N. Thomas
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
Digital signal subscriber loop and interface circuit
Patent number
4,450,556
Issue date
May 22, 1984
Northern Telecom Limited
Alberto Boleda
H04 - ELECTRIC COMMUNICATION TECHNIQUE