Method and apparatus for television
United States Patent 2037711

Inventors:
Farnsworth, Philo T.
Publication Date:
04/21/1936
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Assignee:
TELEVISION LAB INC
Primary Class:
348/625
Other Classes:
313/381, 250/214.100, 330/42, 313/285, 348/252, 330/65, 327/551, 315/11
International Classes:
H01J31/42; H01J31/08