Title:
Article and process for the manufacture thereof
United States Patent 2252999

Inventors:
Wallach, Roger (US)
Publication Date:
08/19/1941
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Assignee:
SYLVANIA IND CORP (US)
Primary Class:
57/256
Other Classes:
8/DIG.021, 428/364, 28/167, 57/257, 19/145, 8/115.600, 28/166, 57/297, 8/118, 19/46, 264/DIG.075, 8/120, 8/131, 8/DIG.010, 156/305, 66/178R, 8/115.700
International Classes:
D02G3/40; D02G3/48; D02G3/22