Title:
Ball
United States Patent 2521703
US Patent References:
Sponge-rubber article and method of making the same
- - 1345904
Playing ball
- - 2324277
Sponge-rubber article and method of making the same
- - 1345904
Playing ball
- - 2324277
Inventors:
Emmitt, Helen P.
Publication Date:
09/12/1950
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Export Citation:
Assignee:
Emmitt, Helen P.
Primary Class:
Other Classes:
D21/713, 273/146, D11/89
International Classes:
A63B41/00