VORRICHTUNG ZUM GREIFEN EINES ROHRES,申请号DE19986013779-传众专利搜索

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发明名称	VORRICHTUNG ZUM GREIFEN EINES ROHRES
摘要
申请公布号	DE69813779(D1)	申请公布日期	2003.05.28
申请号	DE19986013779	申请日期	1998.02.04
申请人	WEATHERFORD/LAMB INC., WILMINGTON	发明人	PIETRAS, BERND-GEORG
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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