Vertebe stretcher
United States Patent 1804441

Inventors:
Silva, Antone J.
Publication Date:
05/12/1931
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Assignee:
Silva, Antone J.
Primary Class:
606/244
Other Classes:
482/144, 482/907, 606/241
International Classes:
A61H1/02; A63B21/06; A63B21/00; A63B23/035