WELL SLIP UNIT,申请号GB19820031249-传众专利搜索

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发明名称	WELL SLIP UNIT
摘要
申请公布号	GB2108555(A)	申请公布日期	1983.05.18
申请号	GB19820031249	申请日期	1982.11.02
申请人	* VARCO INTERNATIONAL INC	发明人	IGOR * KRASNOV
分类号	E21B19/10;(IPC1-7):E21B19/10	主分类号	E21B19/10
代理机构		代理人
主权项
地址

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