US PATENT SUBCLASS 420 / 106
.~.~.~ Boron or beryllium containing

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

8  DF  FERROUS (I.E., IRON BASE) {24}
104  DF  .~ Chromium containing, but less than 9 percent {4}
105  DF  .~.~ Molybdenum containing {5}
106.~.~.~ Boron or beryllium containing

DEFINITION

Classification: 420/106

Boron or beryllium containing:

(under subclass 105) Alloy or metallic composition which additionally contains one or more of boron or beryllium.