Apparatus for measuring fineness of finely divided materials,申请号US19290349376-传众专利搜索

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发明名称	Apparatus for measuring fineness of finely divided materials
摘要
申请公布号	US1838628(A)	申请公布日期	1931.12.29
申请号	US19290349376	申请日期	1929.03.23
申请人	RIVERSIDE CEMENT COMPANY	发明人	KNAPP ROBERT T.
分类号	G01N15/04	主分类号	G01N15/04
代理机构		代理人
主权项
地址

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