Reversible helmet
United States Patent 1947786

Inventors:
Lueck, Henry W.
Davis, Charles H.
Publication Date:
02/20/1934
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Assignee:
Lueck, Henry W.
Davis, Charles H.
Primary Class:
2/10
Other Classes:
2/183, 2/173, 2/182.100
International Classes:
A42B3/22; A42B3/18