Hydraulic casing driver,申请号US19510257094-传众专利搜索

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发明名称	Hydraulic casing driver
摘要
申请公布号	US2723106(A)	申请公布日期	1955.11.08
申请号	US19510257094	申请日期	1951.11.19
申请人	SHELL DEVELOPMENT COMPANY	发明人	MERTEN EUGEN
分类号	E21B4/14;E21B11/00	主分类号	E21B4/14
代理机构		代理人
主权项
地址

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