US PATENT SUBCLASS 428 / 679
.~.~.~.~ Co- or Ni-base component next to Fe-base component

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

544  DF  ALL METAL OR WITH ADJACENT METALS {31}
615  DF  .~ Composite; i.e., plural, adjacent, spatially distinct metal components (e.g., layers, joint, etc.) {15}
655  DF  .~.~ Transition metal-base component {4}
668  DF  .~.~.~ Group VIII or IB metal-base component {10}
679.~.~.~.~ Co- or Ni-base component next to Fe-base component

DEFINITION

Classification: 428/679

(under subclass 668) Subject matter in which a component having 40 percent or more of cobalt, iron, or nickel is adjacent a component having 40 percent or more of iron.

(1) Note. Patents classified herein are not cross-referenced to subclasses 668, 681m or 684+ on the basis of the Co-Ni/Fe interface.