Well completion procedures and apparatus,申请号US19650478504-传众专利搜索

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发明名称	Well completion procedures and apparatus
摘要
申请公布号	US3313347(A)	申请公布日期	1967.04.11
申请号	US19650478504	申请日期	1965.06.23
申请人	GRAY TOOL COMPANY	发明人	CRAIN ROBERT L.
分类号	E21B7/12;E21B33/035;E21B41/10	主分类号	E21B7/12
代理机构		代理人
主权项
地址

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