Breathing mask

Details Breathing mask Breathing mask

1989-09-28

1991-10-01

Chin, Kay H.

Equipment for safety, protection, and rescue

Fire extinguisher or casing therefor

Portable or hand held

D24110

Patent

active

D03204731

REFERENCES:
patent: 3441020 (1969-04-01), Wortz et al.
patent: 4582054 (1986-04-01), Ferrer

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