US PATENT SUBCLASS 420 / 64
.~.~ Boron containing


Current as of: June, 1999
Click HD for Main Headings
Click for All Classes

Internet Version by PATENTEC © 1999      Terms of Use



420 /   HD   ALLOYS OR METALLIC COMPOSITIONS

8  DF  FERROUS (I.E., IRON BASE) {24}
34  DF  .~ Nine percent or more chromium containing {14}
64.~.~ Boron containing


DEFINITION

Classification: 420/64

Boron containing:

(under subclass 34) Alloy or metallic composition which additionally contains boron.