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Thomas Parker
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8183. Parker, T. April 8. Impact pulverizers for disintegrating ores, stone, gravel, &c. The internal surfaces of the casing are made flat or of such form as to cause the material being treated to rebound against, instead of following the rotary path of, the beaters.
GB190208183D1902-04-081902-04-08Improvements in the Casing of Machines for Crushing and Grinding and the like
ExpiredGB190208183A
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