Two-window welding mask

Details Two-window welding mask Two-window welding mask

1992-02-24

1993-12-14

Chin, Kay H.

Equipment for safety, protection, and rescue

Fire extinguisher or casing therefor

Portable or hand held

D29 7

Patent

active

D03423476

REFERENCES:
patent: D320868 (1991-10-01), Kumagai et al.
patent: 4195363 (1980-04-01), Jenson
patent: 4785954 (1988-11-01), Li
patent: 4875235 (1989-10-01), Kuhlman

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