offers flexible autogenous (AG) mills semi-autogenous (SAG) mills ball and pebble mills as well as stirred mills to fit your needs US3404846A - Autogenous grinding mill - Google Patents AUTOGENOUS GRINDING MILL 8 Sheets-Sheet 5 Original Filed Oct 9 1962 Oct 8 1968 A R M PHERSON ETAL 3 404 345

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