US PATENT SUBCLASS 420 / 405
.~ Lanthanide 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

402  DF  MAGNESIUM BASE {6}
405.~ Lanthanide containing {1}
406  DF  .~.~> Zirconium containing

DEFINITION

Classification: 420/405

Lanthanide containing:

(under subclass 402) Alloy, or metallic composition which additionally contains at least one of the metals lanthanum through lutetium, i.e., atomic numbers 57 through 71.