Spring-biased exercising device
United States Patent 3343837
US Patent References:
/1023756.html
- - 1023756

Physical exerciser
- - 2106994

Pneumatic exerciser with pressure gauge
- - 3174343


Inventors:
Walter, Grzybowski
Publication Date:
09/26/1967
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Assignee:
Walter, Grzybowski
Primary Class:
482/126
International Classes:
A63B21/055; A63B21/02