Endoscope
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United States of America Patent
Stats
-
Aug 5, 1980
Grant Date -
N/A
app pub date -
Feb 28, 1977
filing date -
Aug 13, 1976
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An endoscope includes a light conducting outer tube and a light absorbing inner tube, with the inner tube being located concentric with the outer tube and being spaced a distance radially inwardly from the outer tube so as to maintain total internal reflection in the light conducting material of the outer tube.
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