Welding helmet

Details Welding helmet Welding helmet

2006-05-16

2006-05-16

McInroy, Ruth (Department: 2915)

Equipment for safety, protection, and rescue

Body restraint or protective covering

Face, mouth, or ear

Design Patent

active

D0521190

CLAIM:
The ornamental design for a welding helmet, as shown and described.

REFERENCES:
patent: D310276 (1990-08-01), Fuerthbauer et al.
patent: D310432 (1990-09-01), Boochard
patent: D365666 (1995-12-01), Gumpp
patent: 5571217 (1996-11-01), Del Bon et al.
patent: D393933 (1998-04-01), Huh
patent: D394732 (1998-05-01), Huh
patent: D398421 (1998-09-01), Crafoord et al.
patent: D419727 (2000-01-01), Verkic et al.
patent: D431328 (2000-09-01), Tanner
patent: D446887 (2001-08-01), Young
patent: D481832 (2003-11-01), Huh
patent: D489492 (2004-05-01), Wu

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