Combined face mask and shield

Details Combined face mask and shield Combined face mask and shield

1991-03-18

1992-06-16

Chin, Kay H.

Equipment for safety, protection, and rescue

Fire extinguisher or casing therefor

Portable or hand held

D29 8

Patent

active

D03271412

REFERENCES:
patent: 4944294 (1990-07-01), Borek, Jr.
patent: 4969457 (1990-11-01), Hubbard et al.

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