BORING METHOD FOR TUNNEL,申请号JP19910076561-传众专利搜索

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发明名称	BORING METHOD FOR TUNNEL
摘要
申请公布号	JPH04312694(A)	申请公布日期	1992.11.04
申请号	JP19910076561	申请日期	1991.04.09
申请人	SATO KOGYO CO LTD	发明人	SAITO TAKEO;ISHIDA YOSHIAKI;FUKUNAGA NOBUYUKI;KIMURA MUTSUHIKO;MEJI YASUO
分类号	E21B7/02;E21B15/00;E21B19/08;E21D9/00;E21D20/00	主分类号	E21B7/02
代理机构		代理人
主权项
地址

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