Ear sock

Details Ear sock Ear sock

1991-05-01

1994-02-22

Feifer, Melvin B.

Equipment for safety, protection, and rescue

Fire extinguisher or casing therefor

Portable or hand held

Patent

active

D03446115

REFERENCES:
patent: D328160 (1992-07-01), Sudduth
patent: 2378398 (1945-06-01), Fiedler
patent: 2468267 (1949-04-01), Mondl
patent: 3922725 (1975-12-01), Csiki et al.
patent: 4856118 (1989-08-01), Sapiejewski
patent: 4872219 (1989-10-01), Duncan
Handbook of Designs and Devices 1981 p. 154 Top Left #1378 The Solar Variant.

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