Title:
EXERCISE ESCALATOR
United States Patent 3497215
US Patent References:
/1016729.html
- - 1016729

Exerciser
- - 2042764

Exercising apparatus
- - 2399915


Inventors:
Harrison, Walter K.
Talbot, Samuel A.
Publication Date:
02/24/1970
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Assignee:
Univ, Johns Hopkins
Belle, Otto Talbot
Primary Class:
482/53
Other Classes:
482/8
International Classes:
A63B22/04; A63B21/008; A63B22/00; A63B23/06




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