US PATENT SUBCLASS 72 / 258
.~ Expressing polymetallic-layered product


Current as of: June, 1999
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72 /   HD   METAL DEFORMING

253.1  DF  BY EXTRUDING THROUGH ORIFICE {15}
258.~ Expressing polymetallic-layered product


DEFINITION

Classification: 72/258

Expressing polymetallic-layered product:

(under subclass 253.1) Method or means for producing solely by the process of extrusion of an article or material consisting of layers composed of different elemental metals or alloys.

SEE OR SEARCH THIS CLASS, SUBCLASS:

47, for coating of metal followed by metal deformation.