PROTECTING CYLINDER FOR DRILL LEVER FOR ASSEMBLING DEEP WELL DRILLING APPARATUS ON LAND FOR MINING PETROLEUM * NATURAL GAS AND LIKE,申请号JP19780077068-传众专利搜索

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发明名称	PROTECTING CYLINDER FOR DRILL LEVER FOR ASSEMBLING DEEP WELL DRILLING APPARATUS ON LAND FOR MINING PETROLEUM * NATURAL GAS AND LIKE
摘要
申请公布号	JPS54125101(A)	申请公布日期	1979.09.28
申请号	JP19780077068	申请日期	1978.06.27
申请人	NIEMEYER GMBH HERMANN	发明人	GIYUNTERU REFUTO
分类号	E21B17/10	主分类号	E21B17/10
代理机构		代理人
主权项
地址

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