Electron tube rigidizing means
United States Patent 2714676

Inventors:
Machlett, Raymond R.
Joseph, Leferson
Publication Date:
08/02/1955
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Assignee:
MACHLETT LAB INC
Primary Class:
Other Classes:
313/281, 313/266, 313/286, 313/249, 313/282, 313/44
International Classes:
H01J21/36; H01J21/00