Rörtang.,申请号NO19870004011-传众专利搜索

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发明名称	Rörtang.
摘要
申请公布号	NO176624(C)	申请公布日期	1995.05.03
申请号	NO19870004011	申请日期	1987.09.24
申请人	WEATHERFORD US INC;WEATHERFORD-PETCO INC	发明人	HAWKE, MELVIN CARTER
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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