United States Patent 2733922
US Patent References:
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Publication Date:
02/07/1956
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Primary Class:
482/96
Other Classes:
482/145
International Classes:
A63B21/068; A63B23/04; A63B23/08; A63B23/035; A63B21/06
US Patent References:
1750549Exercising apparatus
1979783Exercising machine
1982872Exerciser
2456412Exercising device
2562339Combination bed, chair, and rocking exerciser
2657055Ski practice board