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发明名称
EARTH DISCHARGE DEVICE FOR TUNNEL EXCAVATION
摘要
申请公布号
JPH09228783(A)
申请公布日期
1997.09.02
申请号
JP19960063781
申请日期
1996.02.26
申请人
TOYO KOGYO KK;FURUKAWA CO LTD
发明人
HATA YOSHINORI;MITSUI YURIO;TSUKAHARA YOICHI
分类号
E21D9/12;(IPC1-7):E21D9/12
主分类号
E21D9/12
代理机构
代理人
主权项
地址
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