Rocking device
United States Patent 2475289
US Patent References:
/0156079.html
- - 0156079

/0323701.html
- - 0323701

/0496531.html
- - 0496531

Motorized bed for vascular exercise
- - 2211542

Therapeutic apparatus
- - 2283475


Inventors:
May, Macgregor
Publication Date:
07/05/1949
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Assignee:
Richard, Hudnut
Primary Class:
Other Classes:
482/142, 601/5
International Classes:
A61H1/00; A61H1/02
US Patent References:
2429834Cradle bed