A METHOD OF JOINING TUBULAR MEMBERS,申请号GB19810035199-传众专利搜索

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发明名称	A METHOD OF JOINING TUBULAR MEMBERS
摘要
申请公布号	GB2086787(B)	申请公布日期	1983.04.07
申请号	GB19810035199	申请日期	1980.08.22
申请人	OTIS ENGINEERING CORP	发明人
分类号	E21B17/18;E21B23/03;E21B43/12;(IPC1-7):B23K33/00	主分类号	E21B17/18
代理机构		代理人
主权项
地址

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