ALL CASING DRILLING MACHINE,申请号JP19930048850-传众专利搜索

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发明名称	ALL CASING DRILLING MACHINE
摘要
申请公布号	JPH06257366(A)	申请公布日期	1994.09.13
申请号	JP19930048850	申请日期	1993.03.10
申请人	MITSUBISHI HEAVY IND LTD	发明人	EGAWA KIKUJI;KITAMURA YUZO
分类号	E02D7/20;E02D7/22;E21B7/20;(IPC1-7):E21B7/20	主分类号	E02D7/20
代理机构		代理人
主权项
地址

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