Electrically heated ear muff

Details Electrically heated ear muff Electrically heated ear muff

1985-04-22

1987-10-13

Vales, Carmen H.

Equipment for safety, protection, and rescue

Fire extinguisher or casing therefor

Portable or hand held

D14 36

Patent

active

D02923319

REFERENCES:
patent: D246259 (1977-11-01), Nishimura
patent: D254876 (1980-05-01), Reitenga et al.
patent: 3249949 (1966-05-01), Rosenberg et al.
patent: 4243851 (1981-01-01), Forney
patent: 4571746 (1986-02-01), Gorike

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