75 / | HD | SPECIALIZED METALLURGICAL PROCESSES, COMPOSITIONS FOR USE THEREIN, CONSOLIDATED METAL POWDER COMPOSITIONS, AND LOOSE METAL PARTICULATE MIXTURES |
300 | DF | COMPOSITIONS {5} |
228 | DF | .~ Consolidated metal powder compositions {4} |
249 | DF | .~.~ Base metal one or more of Beryllium(Be), Magnesium(Mg), or Aluminum(Al) {1} |
250 | .~.~.~ Base metal is Beryllium(Be) only |