ARRIVING METHOD FOR SHIELD DRILLING MACHINE INTO VERTICAL SHAFT AND SEAL DEVICE AND AIRTIGHT TANK USED FOR METHOD THEREOF,申请号JP19890030997-传众专利搜索

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发明名称	ARRIVING METHOD FOR SHIELD DRILLING MACHINE INTO VERTICAL SHAFT AND SEAL DEVICE AND AIRTIGHT TANK USED FOR METHOD THEREOF
摘要
申请公布号	JPH02213587(A)	申请公布日期	1990.08.24
申请号	JP19890030997	申请日期	1989.02.13
申请人	KANAZAWA SEISAKUSHO:KK	发明人	KANAZAWA MITSUO
分类号	E21D9/06	主分类号	E21D9/06
代理机构		代理人
主权项
地址

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