AKTIVE BACKE FUER EINE KRAFTZANGE.,申请号DE19896004541T-传众专利搜索

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发明名称	AKTIVE BACKE FUER EINE KRAFTZANGE.
摘要
申请公布号	DE68904541(T2)	申请公布日期	1993.06.17
申请号	DE19896004541T	申请日期	1989.11.27
申请人	WEATHERFORD-PETCO, INC., HOUSTON, TEX., US	发明人	SCHULZE-BECKINGHAUSEN, ERICH, JOERG, W-3008 GARBSEN 4, DE
分类号	E21B19/16;(IPC1-7):E21B19/16	主分类号	E21B19/16
代理机构		代理人
主权项
地址

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