Spring cushioning insole
United States Patent 2668374
US Patent References:
/1194152.html
- - 1194152

Boot or shoe
- - 1502087

Cushioned shoe sole
- - 2437227


Inventors:
William, Seigle
Publication Date:
02/09/1954
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Assignee:
William, Seigle
Primary Class:
36/28
International Classes:
A43B13/18
Foreign References:
GB608180A