SEGMENTED CONCENTRIC CENTRALISER,申请号GB19840027553-传众专利搜索

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发明名称	SEGMENTED CONCENTRIC CENTRALISER
摘要
申请公布号	GB8427553(D0)	申请公布日期	1984.12.05
申请号	GB19840027553	申请日期	1984.10.31
申请人	BAKER OIL TOOLS INC	发明人
分类号	E21B17/10	主分类号	E21B17/10
代理机构		代理人
主权项
地址

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