Mouthpiece block for underwater breathing apparatus

Details Mouthpiece block for underwater breathing apparatus Mouthpiece block for underwater breathing apparatus

1975-12-15

1977-12-13

Ansher, Bernard

Equipment for safety, protection, and rescue

Fire extinguisher or casing therefor

Portable or hand held

D2902

Patent

active

D02466716

REFERENCES:
patent: D203640 (1966-02-01), Shugarman
patent: 3107667 (1963-10-01), Moore
patent: 3123680 (1964-03-01), Minton, Jr. et al.
patent: 3124129 (1964-03-01), Grossberg
patent: 3207154 (1965-09-01), Rubilotta et al.
patent: 3224444 (1965-12-01), Dempster
patent: 3669109 (1972-06-01), Cheffers et al.
patent: 3747598 (1973-07-01), Cowans
patent: 3844281 (1974-10-01), Shamilian

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