Portable oil well derrick splice connection,申请号US19540467725-传众专利搜索

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发明名称	Portable oil well derrick splice connection
摘要
申请公布号	US2991853(A)	申请公布日期	1961.07.11
申请号	US19540467725	申请日期	1954.11.09
申请人	LEE C. MOORE CORPORATION	发明人	WOOLSLAYER HOMER J.;IDDINGS CHARLES D.;BORG PAUL E.
分类号	E21B15/00	主分类号	E21B15/00
代理机构		代理人
主权项
地址

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