Adjustable headgear
United States Patent 3156923
US Patent References:
/0846476.html
- - 0846476

Headgear
- - 2461605

Brushes
- - 2958889

Safety hat
- - 3016541

Adjustable headband
- - 3041622


Inventors:
Walter, Timm
Publication Date:
11/17/1964
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Assignee:
MINE SAFETY APPLIANCES CO
Primary Class:
2/419
Other Classes:
24/176, 24/16PB
International Classes:
A42B3/14; A42B3/04
US Patent References:
3047876Adjustable head piece
Foreign References:
FR1251076A