Drilldown: Patents
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Patents > Company :
Audio Precision or
General Electric or
Tektronix Inc or
Tony Sprando
& Filing date:
1980 - 1989
& Grant date:
1982
& Cites :
Patent US 3293474A or
Patent US 3312850A or
Patent US 3689752A or
Patent US 3725792A
& Links :
465 or
475 or
None
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