Combined respiratory mask and inflatable head straps

Details Combined respiratory mask and inflatable head straps Combined respiratory mask and inflatable head straps

1986-08-21

1989-10-31

Burke, Wallace R.

Equipment for safety, protection, and rescue

Fire extinguisher or casing therefor

Portable or hand held

Patent

active

D03043843

REFERENCES:
patent: 2317237 (1943-04-01), Wilen
patent: 2406888 (1946-09-01), Meidenbauer, Jr.
patent: 3180333 (1965-04-01), Lewis
patent: 4328798 (1982-05-01), Isaacson
patent: 4579113 (1986-04-01), McCreadie et al.
patent: 4595003 (1986-06-01), Shoemaker et al.

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