Drilldown: Patents
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Patents > Company :
Richard Cabot or
Tektronix Inc or
The Grass Valley Group, Inc. or
Zeelan Technology, Inc.
& Filing date:
October 31, 1977
& Grant date:
January 2, 1979
& Cites :
Patent GB 460562A or
Patent US 2883619A or
Patent US 3293474A or
Patent US 3325673A or
Patent US 3413513A or
None
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