Two-way television communication unit
United States Patent 2420198
US Patent References:
Television system
- - 1932253
Television and like apparatus
- - 1980150
Two-way television transmission
- - 2308381
Electrical circuit
- - 2315784
Television system
- - 1932253
Television and like apparatus
- - 1980150
Two-way television transmission
- - 2308381
Electrical circuit
- - 2315784
Inventors:
Rosenthal, Adolph H.
Publication Date:
05/06/1947
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Export Citation:
Assignee:
SCOPHONY CORP OF AMERICA
Primary Class:
Other Classes:
348/E07.080
International Classes:
H04N7/14