Improvements in spring coiling machines,申请号GB19470034927-传众专利搜索

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发明名称	Improvements in spring coiling machines
摘要
申请公布号	GB646176(A)	申请公布日期	1950.11.15
申请号	GB19470034927	申请日期	1947.12.31
申请人	GEORGE HENRY MERCER;WILLIAM HENRY LABAN	发明人
分类号	B21F3/06	主分类号	B21F3/06
代理机构		代理人
主权项
地址

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