US PATENT SUBCLASS 252 / 62.61
.~.~.~ Lithium

Current as of: June, 1999
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252 /   HD   COMPOSITIONS

62.51 R  DF  MAGNETIC {5}
62.56  DF  .~ Iron-oxygen compound containing {5}
62.6  DF  .~.~ With Group I metal {1}
62.61.~.~.~ Lithium

DEFINITION

Classification: 252/62.61

(under subclass 62.6) Compositions wherein the group I metal is lithium.