Title:
Vibrating contour chair
United States Patent 2715901

Inventors:
Blake, Oliver P.
Publication Date:
08/23/1955
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Assignee:
Blake, Oliver P.
Primary Class:
601/57
Other Classes:
D24/215, 601/67, 601/97
International Classes:
A61H1/00; A61H23/02
Other References:
None