Drilldown: Patents
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Patents > Inventors :
Dan Knierim or
George Frye or
John Kobbe or
Les Larson or
Richard A. Jackson or
Richard Cabot
& Company :
Richard Cabot or
The Grass Valley Group, Inc.
& Cites :
Patent GB 460562A or
Patent US 2280531A or
Patent US 2922074A or
Patent US 3413513A or
Patent US 3689752A
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