LOW FOCUS VOLTAGE ELECTRON GUN FOR CATHODE-RAY TUBES
United States Patent 3501668
Inventors:
Pappadis, Nicholas P.
Publication Date:
03/17/1970
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Assignee:
ZENITH RADIO CORP
Primary Class:
Other Classes:
313/417, 315/382.100
International Classes:
H01J29/50; H01J29/62; H01J29/58; H01J29/46