US PATENT SUBCLASS 252 / 62.62
.~.~ With Group II metal or lead

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}
62.62.~.~ With Group II metal or lead {2}
62.63  DF  .~.~.~> Calcium, barium, strontium, or lead
62.64  DF  .~.~.~> Magnesium

DEFINITION

Classification: 252/62.62

(under subclass 62.56) Compositions containing a group II metal or lead in combined form. Group II metal as used in this and indented subclasses encompasses subgroups IIA and IIB and specifically includes beryllium, magnesium, calcium, strontium, barium, radium, zinc, cadmium and mercury.