Title:
Optical protective device
Document Type and Number:
United States Patent 2262203
Inventors:
Publication Date:
11/11/1941
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Referenced by:
Export Citation:
Assignee:
Redstone, Louis G.
Abrams, Henry J.
Redstone, Soloman E.
Abrams, Henry J.
Redstone, Soloman E.
Primary Class:
Other Classes:
73/331, 220/663, 126/200, 359/809, 359/894, 359/819, 359/793, 49/171
International Classes:
E06B7/30; E06B7/00