Manufacture of abrasive products,申请号US19390252547-传众专利搜索

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发明名称	Manufacture of abrasive products
摘要
申请公布号	US2258774(A)	申请公布日期	1941.10.14
申请号	US19390252547	申请日期	1939.01.24
申请人	RAYBESTOS-MANHATTAN, INC.	发明人	KUZMICK JOSEPH N.
分类号	B24D3/34	主分类号	B24D3/34
代理机构		代理人
主权项
地址

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