Title:
Exercising machines operable independently of the exercising person's applied force
United States Patent 3372928
Inventors:
Robert, Showalter Merle
Publication Date:
03/12/1968
Export Citation:
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Primary Class:
482/7
Other Classes:
482/903
International Classes:
A63B21/002; A63B21/00; A63B21/005; A63B21/002; A63B21/00; A63B21/005
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US Patent References:
3128904N/A
3045667Exercising apparatus
2969060Exercising machine
2884252Retractable goal posts
0928085N/A
Foreign References:
IT302572B