HAND EXERCISING DEVICE
United States Patent 3457912
US Patent References:
Mechanical hand
- - 3020908


Inventors:
Clark, Myron L.
Young Jr., David G.
Publication Date:
07/29/1969
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Assignee:
CLARK ASS INC
Primary Class:
601/40
International Classes:
A61H1/02; A61H9/00; A61H15/00
Foreign References:
CA735700A
DE73434C




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