US2362811A - Ball mill liner - Google Patents
US2362811A US428639A US42863942A US2362811A US 2362811 A US2362811 A US 2362811A US 428639 A US428639 A US 428639A US 42863942 A US42863942 A US 42863942A US 2362811 A US2362811 A US 2362811A Authority US United States Prior art keywords liner balls mill grinding ribs Prior art date Legal status (The legal status is an assumption and is not a legal conclusion.