SYSTEME DE COMPLETION ET D'ESSAI D'UN PUITS ET METHODE D'ESSAI D'UN PUITS,申请号BE19820208582-传众专利搜索

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发明名称	SYSTEME DE COMPLETION ET D'ESSAI D'UN PUITS ET METHODE D'ESSAI D'UN PUITS
摘要
申请公布号	BE893830(A1)	申请公布日期	1982.11.03
申请号	BE19820208582	申请日期	1982.07.13
申请人	OTIS ENGINEERING CORP.	发明人	IMRE IWAN GAZDA
分类号	E21B47/00;E21B33/12;E21B33/129;E21B49/08;(IPC1-7):E21B/;E21C/;F16K/	主分类号	E21B47/00
代理机构		代理人
主权项
地址

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