US PATENT SUBCLASS 252 / 301.6 R
.~ Zinc or cadmium containing

Current as of: June, 1999
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252 /   HD   COMPOSITIONS

301.4 R  DF  INORGANIC LUMINESCENT COMPOSITIONS {6}
301.6 R.~ Zinc or cadmium containing {3}
301.6 S  DF  .~.~> Sulfur containing
301.6 P  DF  .~.~> Phosphorus containing
301.6 F  DF  .~.~> Group IV element containing

Unofficial Alpha Subclasses: R S P F

DEFINITION

Classification: 252/301.6

(under subclass 301.4) Compositions which contain zinc or cadmium in combined or elemental form.