JUNTA SELANTE SEPARAVEL APERFEICOADA,申请号BR1989PI01636-传众专利搜索

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发明名称	JUNTA SELANTE SEPARAVEL APERFEICOADA
摘要
申请公布号	BR8901636(A)	申请公布日期	1990.10.30
申请号	BR1989PI01636	申请日期	1989.04.07
申请人	PETROLEO BRASILEIRO S.A. PETROBRAS	发明人	ELIBERTO EDUARDO PINHEIRO
分类号	E21B33/00;(IPC1-7):E21B33/00	主分类号	E21B33/00
代理机构		代理人
主权项
地址

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