NARROW GROOVE AUTOMATIC WELDING METHOD OF PIPELINE GIRTH JOINTS,申请号JP19780158265-传众专利搜索

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发明名称	NARROW GROOVE AUTOMATIC WELDING METHOD OF PIPELINE GIRTH JOINTS
摘要
申请公布号	JPS5584276(A)	申请公布日期	1980.06.25
申请号	JP19780158265	申请日期	1978.12.21
申请人	NIPPON STEEL CORP	发明人	SAKURAI HIDEO
分类号	B23K9/16;B23K9/12;B23K9/167;B23K9/173	主分类号	B23K9/16
代理机构		代理人
主权项
地址

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