Title:
Safety face mask
United States Patent 3298031
US Patent References:
Face protector or shield
- - 1582164

Combination skullguard and face shield
- - 2718006

Eye shield
- - 2903700

Conversion shield for mask window
- - 3147487


Inventors:
Joseph, Morgan Harold
Publication Date:
01/17/1967
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Assignee:
GEN DYNAMICS CORP
Primary Class:
2/9
Other Classes:
D29/110, 2/427
International Classes:
A61F9/02
Foreign References:
DE688227C
DE871946C
DE1075796B
GB873044A