Title:
Pneumatic insole
United States Patent 2600239
US Patent References:
/1241832.html
- - 1241832

Pneumatic foot support
- - 2080469

Insole for shoes
- - 2080499


Inventors:
Gilbert, Levi L.
Publication Date:
06/10/1952
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Assignee:
Gilbert, Levi L.
Primary Class:
36/153
International Classes:
A43B17/03; A43B17/00