Helmet supporting structure
United States Patent 3183522
US Patent References:
Protective headgear
- - 1935204

Protective helmet
- - 2359387

Boxing head guard
- - 2594478

Pneumatic suspension for safety hat
- - 2816290

Molded suspension for safety hat
- - 2946063


Inventors:
Groot, John K.
Publication Date:
05/18/1965
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Assignee:
WILSON ATHLETIC GOODS MFG CO I
Primary Class:
2/418
Other Classes:
2/181.400
International Classes:
A42B3/14; A42B3/04
US Patent References:
2969546Crown piece for helmets
3089144Impact absorbers