US PATENT SUBCLASS 148 / 330
.~.~ Beryllium or boron containing


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

Internet Version by PATENTEC © 1999      Terms of Use



148 /   HD   METAL TREATMENT

400  DF  STOCK {20}
320  DF  .~ Ferrous (i.e., iron base) {10}
330.~.~ Beryllium or boron containing


DEFINITION

Classification: 148/330

Beryllium or boron containing:

(under subclass 320) Stock material which additionally contains beryllium or boron.