Title:
Therapeutic exercise chair
United States Patent 3072400
Inventors:
Dykinga, Donald L.
Publication Date:
01/08/1963
Export Citation:
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Assignee:
Dykinga, Donald L.
Primary Class:
601/23
Other Classes:
482/102, 601/24
International Classes:
A61H1/02; A63B23/00; A63B21/00; A63B21/06; A61H1/02; A63B23/00; A63B21/00; A63B21/06
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US Patent References:
2929375Hand supinator
2456017Polio exercising machine
2305548Exercising device
1929107Massaging machine
1121795N/A
0951560N/A
Foreign References:
DE222515C