Wet christmas tree,申请号EP19920307273-传众专利搜索

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发明名称	Wet christmas tree
摘要
申请公布号	EP0527619(B1)	申请公布日期	1996.11.06
申请号	EP19920307273	申请日期	1992.08.10
申请人	PETROLEO BRASILEIRO S.A. - PETROBRAS	发明人	PAULO, CEZAR AUGUSTO SILVA;DA SILVA, JOSE EDUARDO MENDONCA
分类号	E21B33/035;E21B34/04;(IPC1-7):E21B43/013	主分类号	E21B33/035
代理机构		代理人
主权项
地址

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