Abrasive article and method of making,申请号US19440542323-传众专利搜索

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发明名称	Abrasive article and method of making
摘要
申请公布号	US2457012(A)	申请公布日期	1948.12.21
申请号	US19440542323	申请日期	1944.06.27
申请人	THE CARBORUNDUM COMPANY	发明人	UPPER FREDERICK A.
分类号	B24D18/00	主分类号	B24D18/00
代理机构		代理人
主权项
地址

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