US PATENT SUBCLASS 340 / 674
.~.~.~ Discrete articles

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

500  DF  CONDITION RESPONSIVE INDICATING SYSTEM {6}
540  DF  .~ Specific condition {18}
673  DF  .~.~ Article transport {3}
674.~.~.~ Discrete articles

DEFINITION

Classification: 340/674

Discrete articles:

(under subclass 673) Subject matter where the object has discrete boundaries which pass the point at which the condition is observed.

SEE OR SEARCH CLASS

250, Radiant Energy,

222.1, for photocell circuits for detecting article passage.