US PATENT SUBCLASS 252 / 521.5
.~.~ Halogen, carbon, phosphorus, or nitrogen containing

Current as of: June, 1999
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252 /   HD   COMPOSITIONS

500  DF  ELECTRICALLY CONDUCTIVE OR EMISSIVE COMPOSITIONS {6}
518.1  DF  .~ Metal compound containing {16}
521.5.~.~ Halogen, carbon, phosphorus, or nitrogen containing

DEFINITION

Classification: 252/521.5

Halogen, carbon, phosphorus, or nitrogen containing:

(under subclass 518.1) Compositions wherein halogen, carbon, phosphorus, or nitrogen is present in the metal compound.