BACK SEALING METHOD FOR PIPELINE PERIPHERAL JOINT WELDING,申请号JP19890160223-传众专利搜索

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发明名称	BACK SEALING METHOD FOR PIPELINE PERIPHERAL JOINT WELDING
摘要
申请公布号	JPH0327877(A)	申请公布日期	1991.02.06
申请号	JP19890160223	申请日期	1989.06.22
申请人	MITSUBISHI HEAVY IND LTD	发明人	ITABASHI HIROSHI;TAKAGI SHOZO;SAITO YASUO
分类号	B23K9/16;B23K9/035	主分类号	B23K9/16
代理机构		代理人
主权项
地址

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