Endoscope
United States Patent 2516494
US Patent References:
Endoscope
- - 1880551

Telescopic instrument
- - 2079233

Instrument for examining body cavities
- - 2258083


Inventors:
Wallace, Frederick J.
Publication Date:
07/25/1950
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Assignee:
AMERICAN CYSTOSCOPE MAKERS INC
Primary Class:
600/129
Other Classes:
600/179
International Classes:
A61B1/307