US PATENT SUBCLASS 250 / 369
.~.~ With output system

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

336.1  DF  INVISIBLE RADIANT ENERGY RESPONSIVE ELECTRIC SIGNALLING {16}
361 R  DF  .~ With or including a luminophor {7}
369.~.~ With output system

DEFINITION

Classification: 250/369

(under subclass 361) Subject matter in combination with electric circuit means which is energized or controlled by the electric current produced by the photodetector.