METHOD OF CONSTRUCTION AND DEVICE OF LARGE-BORE SHAFT EXCAVATION,申请号JP19850154346-传众专利搜索

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发明名称	METHOD OF CONSTRUCTION AND DEVICE OF LARGE-BORE SHAFT EXCAVATION
摘要
申请公布号	JPS6217292(A)	申请公布日期	1987.01.26
申请号	JP19850154346	申请日期	1985.07.15
申请人	NISSHIN KISO KOGYO KK;HITACHI CONSTR MACH CO LTD	发明人	CHIKASAWA REIKICHI;SHIMAUCHI KAZUO;KUSUMI HIROSHI;NOZAKI SATOSHI
分类号	E21B7/20	主分类号	E21B7/20
代理机构		代理人
主权项
地址

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