Television picture mixing circuit
United States Patent 2490561
US Patent References:
Television system
- - 2073370

Television system
- - 2164297

Television control system
- - 2172936

Television control
- - 2193869

Electrical system
- - 2240420


Inventors:
Ussler Jr., William
Publication Date:
12/06/1949
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Assignee:
Ussler Jr., William
Primary Class:
348/596
Other Classes:
348/597, 348/E05.056, 327/105
International Classes:
H04N5/265
US Patent References:
2244239Television system
Foreign References:
GB455858A