Title:
Toxic chemicals mask
Document Type and Number:
United States Patent 3018776
Inventors:
Publication Date:
01/30/1962
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Export Citation:
Assignee:
Saitta, Vincent F.
Mcconville, Thomas W.
Mcconville, Thomas W.
Primary Class:
Other Classes:
D24/110.200, 222/5, 128/205.210, 128/206.260
International Classes:
A62B18/08; A62B18/00
Foreign References:
| FR749920A | ||||
| GB494173A |