US PATENT SUBCLASS 428 / 657
.~.~.~ Group IIB metal-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}
657.~.~.~ Group IIB metal-base component {1}
658  DF  .~.~.~.~> Zn-base component {1}

DEFINITION

Classification: 428/657

(under subclass 655) Subject matter in which a component of the composite comprises 40 percent or more of the Group IIB metal(s).

(1) Note. This subclass (657) is the locus for composites having a cadmium-base or mercury-base component.

SEE OR SEARCH THIS CLASS, SUBCLASS:

656, to complete a search for Cd- and Hg-base components.