SPRING TYPE BUST DEVELOPER
United States Patent 3497216
US Patent References:
/0630741.html
- - 0630741

/0749147.html
- - 0749147

Grip exerciser
- - 2837334

Exerciser
- - 3216259


Inventors:
Feather, Jack Vincent
Publication Date:
02/24/1970
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Assignee:
Feather, Jack Vincent
Primary Class:
482/122
Other Classes:
482/128
International Classes:
A63B21/05; A63B23/12; A63B21/02; A63B23/035; A63B5/00; A63B21/02




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