Improved manufacture of tubes by cold drawing through a die,申请号GB19480031298-传众专利搜索

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发明名称	Improved manufacture of tubes by cold drawing through a die
摘要
申请公布号	GB655930(A)	申请公布日期	1951.08.08
申请号	GB19480031298	申请日期	1948.12.03
申请人	HAROLD BEVAN EVANS	发明人
分类号	B21C9/00	主分类号	B21C9/00
代理机构		代理人
主权项
地址

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