ESTACAS TUBULARES DE GRANDE DIAMETRO COM PONTA FECHADA,申请号BR1987PI04412-传众专利搜索

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发明名称	ESTACAS TUBULARES DE GRANDE DIAMETRO COM PONTA FECHADA
摘要
申请公布号	BR8704412(A)	申请公布日期	1989.03.14
申请号	BR1987PI04412	申请日期	1987.08.27
申请人	PETROLEO BRASILEIRO S.A. - PETROBRAS	发明人	ALVARO MAIA DA COSTA;LINO FRANCISCO MOREIRA;LUIZ HISSASHI HASSUI;CIPRIANO JOSE DE MEDEIROS JUNIOR
分类号	E02B;E02B7/00;E02B17/00;E02D;E02D5/28;E02D5/48;(IPC1-7):E02D5/48	主分类号	E02B
代理机构		代理人
主权项
地址

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