Bed Pan Grinding Mill

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A grinding mill is a unit operation designed to break a solid material into smaller pieces. The grinding of solid matters occurs under exposure of mechanical forces that trench the structure by overcoming of the interior bonding forces. After the grinding the state of the solid is changed: the grain size, the grain size disposition and the grain shape.




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


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