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Hammer Crusher Patents

Us3813045a hammer crusher google patents.A hammer crusher having a housing within which is journaled one or more rotatable hammer shafts cooperable with an anvil and gratings, each grating including replaceable grating bars.Gruendler crusher and pulveriz grinders 1971.19711108 de de19717142142 patentde7142142uen notactive expired 1972.

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