US PATENT SUBCLASS 136 / 264
.~.~ Selenium or tellurium containing


Current as of: June, 1999
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136 /   HD   BATTERIES: THERMOELECTRIC AND PHOTOELECTRIC

243  DF  PHOTOELECTRIC {2}
252  DF  .~ Cells {12}
264.~.~ Selenium or tellurium containing


DEFINITION

Classification: 136/264

Selenium or tellurium containing:

(under subclass 252) Device in which an active layer contains either selenium or tellurium as an element or an inorganic compound.