Ear muff

Details Ear muff Ear muff

1991-07-15

1994-05-10

McInroy, Ruth

Equipment for safety, protection, and rescue

Fire extinguisher or casing therefor

Portable or hand held

Patent

active

D03468828

REFERENCES:
patent: D130225 (1941-11-01), Hale
patent: D149150 (1948-03-01), Schwartz
patent: D166399 (1952-04-01), Lattuca
patent: 170942 (1875-12-01), Edgar
patent: D206256 (1966-11-01), Boyer
patent: D215138 (1969-09-01), Mackey
patent: D254876 (1980-05-01), Reitenga et al.
patent: D311074 (1990-10-01), Scott et al.
patent: 2314782 (1943-03-01), Goretsky

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