Electric discharge device
United States Patent 2291864

Inventors:
Bennett, Willard H.
Publication Date:
08/04/1942
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Assignee:
ELECTRONIC RES CORP
Primary Class:
313/597
Other Classes:
315/273, 313/351, 445/6, 313/643, 315/54, 313/5, 313/637, 313/336, 220/2.30R
International Classes:
H01J17/20; H01J17/02