Side wall coring and bottom hole drilling tool,申请号US19540415635-传众专利搜索

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发明名称	Side wall coring and bottom hole drilling tool
摘要
申请公布号	US2852230(A)	申请公布日期	1958.09.16
申请号	US19540415635	申请日期	1954.03.11
申请人	EMPIRE OIL TOOL COMPANY	发明人	GARRISON MARION A.
分类号	E21B49/06	主分类号	E21B49/06
代理机构		代理人
主权项
地址

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