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concept of vibratory ball mill 1

US3021082A US3759A US375960A US3021082A US 3021082 A US3021082 A US 3021082A US 3759 A US3759 A US 3759A US 375960 A US375960 A US 375960A US 3021082 A US3021082 A US 3021082A Authority US United States Prior art keywords suspension frequency vibration excitation ball mill Prior art date 19590122 Legal status The legal status is an assumption and is not a legal