Electron gun and the like
United States Patent 2386790

Inventors:
Gaun, Harry M.
Gessford, Ross K.
Publication Date:
10/16/1945
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Assignee:
SYLVANIA ELECTRIC PROD
Primary Class:
313/250
Other Classes:
313/292, 313/337, 313/270, 445/34, 82/128, 313/446, 313/260
International Classes:
H01J29/48