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发明名称
MUD REMOVING METHOD FOR SHIELD EXCAVATOR
摘要
申请公布号
JPS5634899(A)
申请公布日期
1981.04.07
申请号
JP19790109564
申请日期
1979.08.27
申请人
HITACHI SHIPBUILDING ENG CO
发明人
KIKUCHI TOSHIYUKI
分类号
E21D9/13;E21D9/12
主分类号
E21D9/13
代理机构
代理人
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地址
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