Light modifying attachment for flashlights
United States Patent 2823300

Inventors:
Graubner, Herman G.
Publication Date:
02/11/1958
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Assignee:
UNION CARBIDE CORP
Primary Class:
362/186
Other Classes:
340/321, 362/317, D26/49, 362/208
International Classes:
F21L4/00; F21V5/00