US PATENT SUBCLASS 501 / 105
.~.~.~.~ And aluminum compound (e.g., clay, aluminum oxide, etc.)

Current as of: June, 1999
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501 /   HD   COMPOSITIONS: CERAMIC

1  DF  CERAMIC COMPOSITIONS {15}
94  DF  .~ Refractory {8}
102  DF  .~.~ Zirconium compound containing {2}
103  DF  .~.~.~ Zirconium oxide {2}
105.~.~.~.~ And aluminum compound (e.g., clay, aluminum oxide, etc.)

DEFINITION

Classification: 501/105

And aluminum compound (e.g., clay, aluminum oxide, etc.):

(under subclass 103) Subject matter further including a compound of aluminum.

(1) Note. The aluminum compound may be, e.g., clay or Al2O3.