Hydraulic anchors for tubular strings,申请号US19620186193-传众专利搜索

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发明名称	Hydraulic anchors for tubular strings
摘要
申请公布号	US3131769(A)	申请公布日期	1964.05.05
申请号	US19620186193	申请日期	1962.04.09
申请人	BAKER OIL TOOLS, INC.	发明人	ROCHEMONT JOHN F. DE
分类号	E21B23/04	主分类号	E21B23/04
代理机构		代理人
主权项
地址

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