RENEWAL METHOD FOR LAID PIPE TUNNEL AND ANNULAR DRILLING MACHINE,申请号JP19890055188-传众专利搜索

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发明名称	RENEWAL METHOD FOR LAID PIPE TUNNEL AND ANNULAR DRILLING MACHINE
摘要
申请公布号	JPH02236394(A)	申请公布日期	1990.09.19
申请号	JP19890055188	申请日期	1989.03.09
申请人	MITSUBISHI HEAVY IND LTD;HAZAMA GUMI	发明人	SASAKI KIYOMI;OKAMOTO KAZUYUKI;TAKENOUCHI YASUAKI;NISHIO MASATAKA
分类号	E21D9/06;E21D9/08;(IPC1-7):E21D9/06	主分类号	E21D9/06
代理机构		代理人
主权项
地址

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