PIPE JOINT FOR OIL WELL PIPE HAVING STOPPER FUNCTION IN SCREW SCREWING SECTION,申请号JP19860253093-传众专利搜索

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发明名称	PIPE JOINT FOR OIL WELL PIPE HAVING STOPPER FUNCTION IN SCREW SCREWING SECTION
摘要
申请公布号	JPS63106491(A)	申请公布日期	1988.05.11
申请号	JP19860253093	申请日期	1986.10.24
申请人	NIPPON STEEL CORP	发明人	MARUYAMA KAZUSHI;TSURU EIJI
分类号	F16L15/00	主分类号	F16L15/00
代理机构		代理人
主权项
地址

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