Slip mechanism for well tools,申请号US19460707436-传众专利搜索

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发明名称	Slip mechanism for well tools
摘要
申请公布号	US2534529(A)	申请公布日期	1950.12.19
申请号	US19460707436	申请日期	1946.11.02
申请人	PAGE OIL TOOLS INC.	发明人	PAGE JOHN S.
分类号	E21B33/129	主分类号	E21B33/129
代理机构		代理人
主权项
地址

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