Title:
Helmet
Document Type and Number:
United States Patent 3292180


Inventors:
Marietta, Michael T.
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Sponsored by:
Flash of Genius
Publication Date:
12/20/1966
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Assignee:
Marietta, Michael T.
Primary Class:
2/415
Other Classes:
2/420, D29/106, 2/903
International Classes:
A42B3/12; A42B3/14; A42B3/04
US Patent References:
2785404Protective helmet
2802212Headgear supporting structure
1867813Dual purpose pumping apparatus
3103014Headgear
3174155Protective helmet having a padded outer surface
3183522Helmet supporting structure


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