Wire line hydraulic pulling tool,申请号US19540444798-传众专利搜索

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发明名称	Wire line hydraulic pulling tool
摘要
申请公布号	US2829716(A)	申请公布日期	1958.04.08
申请号	US19540444798	申请日期	1954.07.21
申请人	ESSO RESEARCH AND ENGINEERING COMPANY	发明人	STEWART DOUGLASS M.
分类号	E21B31/107	主分类号	E21B31/107
代理机构		代理人
主权项
地址

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