Title:
Helmet supporting structure
United States Patent 3183522
Inventors:
Groot, John K.
Publication Date:
05/18/1965
Export Citation:
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Assignee:
WILSON ATHLETIC GOODS MFG CO I
Primary Class:
2/418
Other Classes:
2/181.4
International Classes:
A42B3/14; A42B3/04
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US Patent References:
3089144Impact absorbers
2969546Crown piece for helmets
2946063Molded suspension for safety hat
2816290Pneumatic suspension for safety hat
2594478Boxing head guard
2359387Protective helmet
1935204Protective headgear