Inhalation mask

Details Inhalation mask Inhalation mask

1986-04-25

1989-03-28

Burke, Wallace R.

Equipment for safety, protection, and rescue

Fire extinguisher or casing therefor

Portable or hand held

Patent

active

D03004732

REFERENCES:
patent: D236033 (1975-07-01), Dryden
patent: D239469 (1976-04-01), Halldin
patent: D249368 (1978-09-01), Watkins, Jr.
patent: D285496 (1986-09-01), Berman
patent: D293613 (1988-01-01), Wingler

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