Spray mask

Details Spray mask Spray mask

1975-10-29

1977-06-28

Spangler, Robert C.

Equipment for safety, protection, and rescue

Fire extinguisher or casing therefor

Portable or hand held

D2803

Patent

active

D02448807

REFERENCES:
patent: 1917117 (1933-07-01), Hines
patent: 3241155 (1966-03-01), Phillips
The Washington Post, 2/28/1973, p. C27-"Big George" Comic Strip, Handheld Mask.

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