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Robert C. Dittburner
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Ottawa, CA
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last 30 patents
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Patent Grant
Electronic circuit pack and mounting frame combination
Patent number
5,421,740
Issue date
Jun 6, 1995
Northern Telecom Limited
Robert C. Dittburner
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Video signal distribution system
Patent number
4,994,909
Issue date
Feb 19, 1991
Northern Telecom Limited
Alan F. Graves
H04 - ELECTRIC COMMUNICATION TECHNIQUE
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Patent Grant
Universal signal generator for generating telephone system high lev...
Patent number
4,284,854
Issue date
Aug 18, 1981
Northern Telecom Limited
Richard Hayward
H04 - ELECTRIC COMMUNICATION TECHNIQUE