Title:
Propulsive-spring foot support
United States Patent 1587749

Inventors:
Bierly, Albert S.
Publication Date:
06/08/1926
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Assignee:
Bierly, Albert S.
Primary Class:
482/80
Other Classes:
280/809, 36/7.800, 280/11.115, D21/685, 482/77, 280/218, 280/11.360
International Classes:
A63B25/10; A63B25/00