US PATENT SUBCLASS 502 / 209
.~.~ And vanadium containing


Current as of: June, 1999
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502 /   HD   CATALYST, SOLID SORBENT, OR SUPPORT THEREFOR: PRODUCT OR PROCESS OF MAKING

100  DF  CATALYST OR PRECURSOR THEREFOR {12}
208  DF  .~ Phosphorus or compound containing same {4}
209.~.~ And vanadium containing


DEFINITION

Classification: 502/209

And vanadium containing:

(under subclass 208) Composition additionally including element number 23, free or chemically combined.