Improvements relating to screw-actuating keys,申请号GB19470002109-传众专利搜索

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发明名称	Improvements relating to screw-actuating keys
摘要
申请公布号	GB637927(A)	申请公布日期	1950.05.31
申请号	GB19470002109	申请日期	1947.01.23
申请人	HARDING AND IVENS LIMITED;LEONARD WALTERS HARDING	发明人
分类号	B25B13/56	主分类号	B25B13/56
代理机构		代理人
主权项
地址

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