Production of abrasive materials,申请号US19350056710-传众专利搜索

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发明名称	Production of abrasive materials
摘要
申请公布号	US2194472(A)	申请公布日期	1940.03.26
申请号	US19350056710	申请日期	1935.12.30
申请人	THE CARBORUNDUM COMPANY	发明人	JACKSON GEORGE H.
分类号	B24D11/00	主分类号	B24D11/00
代理机构		代理人
主权项
地址

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