Adjustable retractor
United States Patent 2474857
US Patent References:
/1157202.html
- - 1157202

Vaginal speculum
- - 2374863


Inventors:
Newman, Louis B.
Publication Date:
07/05/1949
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Assignee:
Newman, Louis B.
Primary Class:
600/206
Other Classes:
600/215
International Classes:
A61B17/02