US PATENT SUBCLASS 428 / 683
.~.~.~.~.~.~ Both containing 0.01-1.7% carbon (i.e., steel)

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}
681  DF  .~.~.~.~ Fe-base component {2}
682  DF  .~.~.~.~.~ Next to Fe-base component {1}
683.~.~.~.~.~.~ Both containing 0.01-1.7% carbon (i.e., steel)

DEFINITION

Classification: 428/683

(under subclass 682) Subject matter in which both components contain 0.01 to 1.7 percent carbon.

(1) Note. The mere designation of the components as "steel" is sufficient for classification herein.

SEE OR SEARCH THIS CLASS, SUBCLASS:

619, 638 and 682, to complete a search for this subject matter.