Respirator's blower-filter unit

Details Respirator's blower-filter unit Respirator's blower-filter unit

1988-07-13

1991-02-19

Chin, Kay H.

Equipment for safety, protection, and rescue

Fire extinguisher or casing therefor

Portable or hand held

Patent

active

D03148440

REFERENCES:
patent: 3721239 (1973-03-01), Myers
patent: 4353366 (1982-10-01), Bickford
patent: 4726366 (1988-02-01), Apple et al.
patent: 4825859 (1989-05-01), Lambert
patent: 4826510 (1989-05-01), McCombs

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