Improvement in and relating to internal screw thread lapping machines,申请号GB19440019701-传众专利搜索

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发明名称	Improvement in and relating to internal screw thread lapping machines
摘要
申请公布号	GB592445(A)	申请公布日期	1947.09.18
申请号	GB19440019701	申请日期	1944.10.12
申请人	NILES-BEMENT-POND COMPANY	发明人
分类号	B24B19/02	主分类号	B24B19/02
代理机构		代理人
主权项
地址

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