Drilldown: Patents
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Patents > Inventors :
John Kobbe or
Les Larson or
Thomas S. Buzak
& Company :
Hiro Moriyasu or
Tektronix Inc or
The Grass Valley Group, Inc. or
XFRM Inc or
Zeelan Technology, Inc.
& Filing date:
June 1973
& Cites :
Patent GB 460562A or
Patent US 2922074A or
Patent US 3312850A or
Patent US 3629731A or
Patent US 4255003A
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