BOOM FOR WELDING INNER SURFACE OF PIPE,申请号JP19770148734-传众专利搜索

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发明名称	BOOM FOR WELDING INNER SURFACE OF PIPE
摘要
申请公布号	JPS5481140(A)	申请公布日期	1979.06.28
申请号	JP19770148734	申请日期	1977.12.13
申请人	NIPPON STEEL WELDING PROD ENG	发明人	SAEKI NOBUROU;KOBAYASHI SHIGEO;SAKUMA YUTAKA
分类号	B23K9/04;B23K9/00;B23K37/00	主分类号	B23K9/04
代理机构		代理人
主权项
地址

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