75 / | HD | SPECIALIZED METALLURGICAL PROCESSES, COMPOSITIONS FOR USE THEREIN, CONSOLIDATED METAL POWDER COMPOSITIONS, AND LOOSE METAL PARTICULATE MIXTURES |
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330 | DF | PROCESSES {9} |
746 | DF | .~ Consolidating metalliferous material (e.g., ore, tailings, flue dust, fluxes, etc.) by agglomerating, compacting, or heat treating; preparatory process therefor; or treating consolidated material therefrom {5} |
751 | DF | .~.~ With heat treatment (e.g., calcinating, fusing, indurating, roasting, sintering, vaporizing, etc.) {8} |
765 | DF | .~.~.~ Sintering or with agglomerating or compacting {4} |
766 | | .~.~.~.~ With coal, coke, pitch, asphalt, or tar |