Two-piece welding helmet

Details Two-piece welding helmet Two-piece welding helmet

1999-04-09

2000-09-26

Zarfas, Louis S.

Equipment for safety, protection, and rescue

Body restraint or protective covering

Face, mouth, or ear

2902

Patent

active

D04313283

REFERENCES:
patent: D226251 (1973-02-01), Raschke
patent: D267207 (1982-12-01), Hilton
patent: D296832 (1988-07-01), Bachik
patent: D308266 (1990-05-01), Van Wyk
patent: D310276 (1990-08-01), Fuerthbauer et al.
patent: D310432 (1990-09-01), Boochard
patent: D365666 (1995-12-01), Gumpp
patent: D393933 (1998-04-01), Huh
patent: D394732 (1998-05-01), Huh
patent: 3026525 (1962-03-01), Gyorfy
patent: 4863244 (1989-09-01), Fuerthbauer et al.
patent: 4989598 (1991-02-01), Berg et al.
patent: 5857215 (1999-01-01), Fergason et al.
Quality Jackson Products brochure assorted helmets, p. 3, from D29/102 patent shoe, Nov. 1965.
"The Complete Speedglas.RTM. Catalog", Hornell Speedglas Inc., specifically p. 5, 1999.

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