Vitreous seal protector
United States Patent 2329019

Inventors:
Wagener, Winfield G.
Publication Date:
09/07/1943
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Assignee:
HEINTZ & KAUFMAN LTD
Primary Class:
313/308
Other Classes:
313/318.120, 174/50.590, 174/395
International Classes:
H01J5/08; H01J5/02