US PATENT SUBCLASS 420 / 58
.~.~.~ Copper containing


Current as of: June, 1999
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420 /   HD   ALLOYS OR METALLIC COMPOSITIONS

8  DF  FERROUS (I.E., IRON BASE) {24}
34  DF  .~ Nine percent or more chromium containing {14}
56  DF  .~.~ Eight percent or more total nickel plus manganese containing {3}
58.~.~.~ Copper containing


DEFINITION

Classification: 420/58

Copper containing:

(under subclass 56) Alloy or metallic composition which additionally contains copper.