Folded oil well drilling mast structure,申请号GB19650031962-传众专利搜索

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发明名称	Folded oil well drilling mast structure
摘要
申请公布号	GB1058072(A)	申请公布日期	1967.02.08
申请号	GB19650031962	申请日期	1965.07.27
申请人	LEE. C. MORE CORPORATION	发明人
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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