Title:
Apparatus for treatment of the spinal column
United States Patent 2677369
US Patent References:
Orthopedic appliance
- - 1401056

Undertaker's block
- - 1973240


Inventors:
Knowles, Fred L.
Publication Date:
05/04/1954
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Assignee:
Knowles, Fred L.
Primary Class:
606/249
Other Classes:
623/10
International Classes:
A61B17/70; A61F2/44; A61F2/00; A61F2/30