FREMGANGSMAATE OG ANORDNING FOR UTVIDELSE AV BOREHULL.,申请号NO19860000614-传众专利搜索

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发明名称	FREMGANGSMAATE OG ANORDNING FOR UTVIDELSE AV BOREHULL.
摘要
申请公布号	NO860614(A)	申请公布日期	1987.03.20
申请号	NO19860000614	申请日期	1986.02.18
申请人	RIVES, ALLEN KENT	发明人	RIVES, ALLEN KENT
分类号	E21B10/34;(IPC1-7):E21B/	主分类号	E21B10/34
代理机构		代理人
主权项
地址

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