Drilldown: Patents
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Patents > Inventors :
Art Metz or
Bruce Hofer or
Dan Knierim or
George Frye or
Les Larson
& Company :
Audio Precision or
General Electric or
Tektronix Inc
& Grant date:
1970 - 1979
& Cites :
... or
Patent GB 460562A or
Patent US 3214516A or
Patent US 3214631A or
Patent US 3312850A or
Patent US 3339088A or
Patent US 3558930A or
Patent US 3725792A or
Patent US 3796910A
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