US PATENT SUBCLASS 252 / 520.21
.~.~.~ Additional diverse metal 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}
520.2  DF  .~.~ Titanium or zirconium compound {2}
520.21.~.~.~ Additional diverse metal containing

DEFINITION

Classification: 252/520.21

Additional diverse metal containing:

(under subclass 520.2) Compositions wherein an additional diverse metal atom is present in the zirconium compound or in the titanium compound.