US PATENT SUBCLASS 501 / 104
.~.~.~.~ And alkaline earth metal or magnesium compound

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}
104.~.~.~.~ And alkaline earth metal or magnesium compound

DEFINITION

Classification: 501/104

And alkaline earth metal or magnesium compound:

(under subclass 103) Subject matter further including a compound of an alkaline earth metal or magnesium.