PRODUCTION OF DOUBLE-PIPE REDUCER PIPE JOINT,申请号JP19890136624-传众专利搜索

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发明名称	PRODUCTION OF DOUBLE-PIPE REDUCER PIPE JOINT
摘要
申请公布号	JPH02284728(A)	申请公布日期	1990.11.22
申请号	JP19890136624	申请日期	1989.05.30
申请人	NIPPON STEEL CORP;BENKAN CORP	发明人	NISHINO MAKOTO;INOUE SEISUKE;TAKADA NOBUHIRO;NAOI HISASHI;MIZUMURA MASAAKI;YABE YASUO;KURITA TAKASHI
分类号	F16L13/14;B21D39/04;B21D41/04	主分类号	F16L13/14
代理机构		代理人
主权项
地址

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