US PATENT SUBCLASS 250 / 375
.~.~ Methods

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

336.1  DF  INVISIBLE RADIANT ENERGY RESPONSIVE ELECTRIC SIGNALLING {16}
374  DF  .~ Including a radiant energy responsive gas discharge device {8}
375.~.~ Methods

DEFINITION

Classification: 250/375

(under subclass 374) Subject matter which includes methods corresponding to the apparatus which utilize a radiant energy responsive gas discharge device.