US PATENT SUBCLASS 250 / 559.03
.~.~ Sequential detector arrangement

Current as of: June, 1999
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250 /   HD   RADIANT ENERGY

200  DF  PHOTOCELLS; CIRCUITS AND APPARATUS {11}
559.01  DF  .~ With circuit for evaluating a web, strand, strip, or sheet {13}
559.03.~.~ Sequential detector arrangement

DEFINITION

Classification: 250/559.03

Sequential detector arrangement:

(under subclass 559.01) Subject matter wherein photocells are arranged to perform plural independent successive detections of the same portion of the material and wherein the detections are subsequently jointly evaluated to determine some characteristic of the material.