Diving mask

Equipment for safety – protection – and rescue – Fire extinguisher or casing therefor – Portable or hand held

Patent

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Details

D16107

Patent

active

D03027473

REFERENCES:
patent: D266031 (1982-09-01), Sato
patent: 3605204 (1971-09-01), Amundsen
patent: 3800329 (1974-04-01), Semeia
patent: 4112521 (1978-09-01), Uke
patent: 4564960 (1986-01-01), Nishiyama

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