Inventor
LANGLAND KENNETH A
US3 patents
Patents
3 patentsUS5466945ANov 14, 1995
Apparatus for detecting proper positioning of objects in a holder
EATON CORP52 citations88
US5446281AAug 29, 1995
Optical sensor with movable refraction element to adjust sensor range
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US7030365B2Apr 18, 2006
Emitter-detector assembly for a reflex photoelectric object detection system
EATON CORP8 citations68