Welding mask

Details Welding mask Welding mask

1993-02-12

1994-12-20

Chin, Kay H.

Equipment for safety, protection, and rescue

Body restraint or protective covering

Face, mouth, or ear

Patent

active

D03536912

REFERENCES:
patent: 2963708 (1960-12-01), Herbine et al.
patent: 3369255 (1967-02-01), Bolle
patent: 3380073 (1968-04-01), McLaughlin
patent: 3696442 (1972-10-01), Amundsen et al.
patent: 3720956 (1973-03-01), Raschke
patent: 5257417 (1993-11-01), Oleson

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