Electron discharge tube arrangements
United States Patent 2757233

Inventors:
Sidney, Webley Reginald
Publication Date:
07/31/1956
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Assignee:
EMI LTD
Primary Class:
348/209.990
Other Classes:
315/11
International Classes:
H01J31/40; H01J31/08
US Patent References:
2572644Electron discharge tube
2619531Pickup tube for television and the like
2622226Television pickup tube
2668190Television image pickup system