Improvements in and relating to the formation of screw threads in articles formed ofsheet material,申请号GB19450026900-传众专利搜索

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发明名称	Improvements in and relating to the formation of screw threads in articles formed ofsheet material
摘要
申请公布号	GB602401(A)	申请公布日期	1948.05.26
申请号	GB19450026900	申请日期	1945.10.15
申请人	DRUMS LIMITED;WILLIAM JESSOP	发明人
分类号	B21D51/50	主分类号	B21D51/50
代理机构		代理人
主权项
地址

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