Lapping method and apparatus,申请号US19520270544-传众专利搜索

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发明名称	Lapping method and apparatus
摘要
申请公布号	US2612736(A)	申请公布日期	1952.10.07
申请号	US19520270544	申请日期	1952.02.08
申请人	E. I. DU PONT DE NEMOURS & COMPANY	发明人	LEWIS THOMAS G.
分类号	B24B5/04	主分类号	B24B5/04
代理机构		代理人
主权项
地址

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