US PATENT SUBCLASS 340 / 942
.~ Photoelectric

Current as of: June, 1999
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340 /   HD   COMMUNICATIONS: ELECTRICAL

933  DF  VEHICLE DETECTORS {10}
942.~ Photoelectric

DEFINITION

Classification: 340/942

Photoelectric:

(under subclass 933) Subject matter wherein the vehicle detector comprises a light source and sensor means.

SEE OR SEARCH CLASS

250, Radiant Energy,

200+, for photocells; circuits and apparatus.