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发明名称
SHIELD TECHNIQUE AND SHIELD DRILLING MACHINE
摘要
申请公布号
JPH09279988(A)
申请公布日期
1997.10.28
申请号
JP19960088350
申请日期
1996.04.10
申请人
HITACHI CONSTR MACH CO LTD
发明人
TAMURA KATSUMI;TAKEUCHI HIROKI;MAEHARA NOBUYUKI
分类号
E21D9/06;(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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