US PATENT SUBCLASS 148 / 408
.~.~ Cobalt base

Current as of: June, 1999
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148 /   HD   METAL TREATMENT

400  DF  STOCK {20}
405  DF  .~ Age or precipitation hardened or strengthened {7}
408.~.~ Cobalt base

DEFINITION

Classification: 148/408

Cobalt base:

(under subclass 405) Stock material which contains over 50 percent of cobalt by weight.