US PATENT SUBCLASS 252 / 521.3
.~.~ Silicon containing or with silicon compound

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}
521.3.~.~ Silicon containing or with silicon compound

DEFINITION

Classification: 252/521.3

Silicon containing or with silicon compound:

(under subclass 518.1) Compositions wherein silicon is present in the metal compound or wherein a silicon compound is present in addition to the metal compound.