Valve assembly for a respirator

Details Valve assembly for a respirator Valve assembly for a respirator

1985-04-09

1988-02-23

Gandy, James M.

Equipment for safety, protection, and rescue

Fire extinguisher or casing therefor

Portable or hand held

Patent

active

D02944103

REFERENCES:
patent: 537678 (1895-04-01), Detourbe
patent: 2067822 (1937-01-01), Biederman
patent: 3014479 (1961-12-01), Matheson
patent: 3072119 (1963-01-01), Matheson
patent: 3307543 (1967-03-01), Silverman
patent: 4454881 (1984-06-01), Huber et al.
patent: 4501272 (1985-02-01), Shigematsu et al.
patent: 4549543 (1985-10-01), Moon
Direct Safety Company 1983-K Catalog, p. 15 Mask/Respirator, Multi-Purpose Organic Vapor, Acid Gas.

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