Underwater breathing regulator

Details Underwater breathing regulator Underwater breathing regulator

1977-12-16

1980-06-24

Ansher, Bernard

Equipment for safety, protection, and rescue

Fire extinguisher or casing therefor

Portable or hand held

D2902

Patent

active

D02556090

REFERENCES:
patent: D202318 (1965-09-01), Shugarman
patent: D202319 (1965-09-01), Shugarman
patent: D245121 (1977-07-01), Christianson
patent: 3978854 (1976-09-01), Mills, Jr.
patent: 4002166 (1977-01-01), Oliver
patent: 4140112 (1979-02-01), Kobzan

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