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Patents > Inventors:
Thomas H Charters 
& Company :
Dubner Computer Systems, Inc. or
Tektronix Inc or
The Grass Valley Group, Inc. or
Zeelan Technology, Inc.
& Filing date:
1970
& Cites :
Patent US 2280531A or
Patent US 4146844A or
Patent US 4150420A
& Links :
5A45 or
7912 or
7A15 or
T7912 or
None
& Company :
Dubner Computer Systems, Inc. or
Tektronix Inc or
The Grass Valley Group, Inc. or
Zeelan Technology, Inc.
& Filing date:
1970
& Cites :
Patent US 2280531A or
Patent US 4146844A or
Patent US 4150420A
& Links :
5A45 or
7912 or
7A15 or
T7912 or
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