Synthetic abrasive material,申请号US19400320453-传众专利搜索

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发明名称	Synthetic abrasive material
摘要
申请公布号	US2358313(A)	申请公布日期	1944.09.19
申请号	US19400320453	申请日期	1940.02.23
申请人	MINNESOTA MINING & MANUFACTURING COMPANY	发明人	BROWN JOHN A.
分类号	C09K3/14	主分类号	C09K3/14
代理机构		代理人
主权项
地址

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