UNION PARA TUBOS SEMIRIGIDOS,申请号ES19870002450U-传众专利搜索

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发明名称	UNION PARA TUBOS SEMIRIGIDOS
摘要
申请公布号	ES245087(Y)	申请公布日期	1981.02.16
申请号	ES19870002450U	申请日期	1979.08.09
申请人		发明人
分类号	F16L21/02;(IPC1-7):16L21/02	主分类号	F16L21/02
代理机构		代理人
主权项
地址

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