US PATENT SUBCLASS 428 / 329
.~.~.~ Iron oxide or aluminum oxide

Current as of: June, 1999
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428 /   HD   STOCK MATERIAL OR MISCELLANEOUS ARTICLES

221  DF  WEB OR SHEET CONTAINING STRUCTURALLY DEFINED ELEMENT OR COMPONENT {9}
323  DF  .~ Including a second component containing structurally defined particles {7}
328  DF  .~.~ Heavy metal or aluminum or compound thereof {1}
329.~.~.~ Iron oxide or aluminum oxide

DEFINITION

Classification: 428/329

(under subclass 328) Product wherein the metal is iron or aluminum and is present as the oxide.