US PATENT SUBCLASS 250 / 395
.~ Methods

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

336.1  DF  INVISIBLE RADIANT ENERGY RESPONSIVE ELECTRIC SIGNALLING {16}
395.~ Methods

DEFINITION

Classification: 250/395

(under subclass 336.1) Subject matter which include processes for producing an electrical signal between some two electrically accessible points.