US PATENT SUBCLASS 148 / 428
.~.~.~ Aluminum containing


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

400  DF  STOCK {20}
426  DF  .~ Nickel base {2}
427  DF  .~.~ Chromium containing {1}
428.~.~.~ Aluminum containing


DEFINITION

Classification: 148/428

Aluminum containing:

(under subclass 427) Stock material which additionally contains aluminum.