Otoscope
United States Patent 2683450
US Patent References:
Illuminating attachment for specula
- - 1913780

Diagnostic instrument
- - 2507771


Inventors:
Schenk, George F.
Publication Date:
07/13/1954
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Assignee:
AMERICAN OPTICAL CORP
Primary Class:
600/200
Other Classes:
D24/137
International Classes:
A61B1/227