Ore Crushing Machine

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A crusher is a machine designed to reduce large rocks into smaller rocks, gravel, or rock dust. Crushers may be used to reduce the size, or change the form of the waste materials so they can be more easily disposed of or recycled, or to reduce the size of a solid mix of raw materials so that the pieces of different composition can be differentiated.




Government Printing Office The Official Gazette of the United States Patent Office (Washington, DC: Government Printing Office, 1895)


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