Face mask

Details Face mask Face mask

1990-10-23

1992-05-26

Chin, Kay H.

Equipment for safety, protection, and rescue

Fire extinguisher or casing therefor

Portable or hand held

D29 17

Patent

active

D03265412

REFERENCES:
patent: 3216415 (1965-11-01), Littleton
patent: 3249108 (1966-05-01), Terman
patent: 4454881 (1984-06-01), Huber et al.
patent: 4802473 (1989-02-01), Hubbard
patent: 4827923 (1989-05-01), Bishop et al.
patent: 4834212 (1989-05-01), Figone
patent: 4883052 (1989-11-01), Weiss
patent: 4951664 (1990-08-01), Niemeyer

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