Face mask

Details Face mask Face mask

1990-08-07

1993-05-25

Chin, Kay H.

Equipment for safety, protection, and rescue

Fire extinguisher or casing therefor

Portable or hand held

D29 7

Patent

active

D03359379

REFERENCES:
patent: D293829 (1988-01-01), Johnston
patent: D304869 (1989-11-01), Mattox
patent: 1810486 (1931-06-01), Lancaster
patent: 2716981 (1955-09-01), More
patent: 3211146 (1965-10-01), Rodelli
patent: 4050457 (1977-09-01), Davidson
patent: 4510931 (1985-04-01), Henderson
patent: 4657010 (1987-04-01), Wright
patent: 4811730 (1989-03-01), Milano

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