Gas mask

Details Gas mask Gas mask

1989-11-16

1991-10-15

Chin, Kay H.

Equipment for safety, protection, and rescue

Fire extinguisher or casing therefor

Portable or hand held

D29 7

Patent

active

D03208680

REFERENCES:
patent: D181887 (1958-01-01), Stuart
patent: 4250877 (1981-02-01), Owens et al.
patent: 4677976 (1987-07-01), Fujinuma et al.

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