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United States Patent 2369778

Inventors:
Hyman, Feder Abe
Publication Date:
02/20/1945
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Assignee:
Hyman, Feder Abe
Primary Class:
362/242
Other Classes:
362/414, 362/343, 362/354
International Classes:
B22D17/24; F21S6/00; F21V11/00