Face mask

Details Face mask Face mask

1989-11-09

1992-02-11

Chin, Kay H.

Equipment for safety, protection, and rescue

Fire extinguisher or casing therefor

Portable or hand held

Patent

active

D03239080

REFERENCES:
patent: D285496 (1986-09-01), Berman
patent: D293613 (1988-01-01), Wingler
patent: D300473 (1989-03-01), Roush
patent: 2666432 (1954-11-01), Stanton
patent: 2830584 (1958-04-01), Hollmann et al.
patent: 2848994 (1958-08-01), Aguado
patent: 2931356 (1960-04-01), Schwartz
patent: 3105488 (1963-10-01), Richards
patent: 3315674 (1967-04-01), Bloom et al.
patent: 3805782 (1974-04-01), Welch
patent: 3908648 (1975-09-01), McCosker
patent: 3918448 (1975-11-01), McCosker
patent: 4062357 (1977-12-01), Laerdal
patent: 4195629 (1980-04-01), Halford

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