Ball mill with feed and discharge means at each opposite end,申请号US19510232327-传众专利搜索

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发明名称	Ball mill with feed and discharge means at each opposite end
摘要
申请公布号	US2664248(A)	申请公布日期	1953.12.29
申请号	US19510232327	申请日期	1951.06.19
申请人	MARTIN JOHN B	发明人	MARTIN JOHN B.
分类号	B02C17/04	主分类号	B02C17/04
代理机构		代理人
主权项
地址

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