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发明名称
METHOD OF CONVEYING EXCAVATED GRAVEL IN SHIELD EXCAVATING PROCESS
摘要
申请公布号
JPS5392533(A)
申请公布日期
1978.08.14
申请号
JP19770007558
申请日期
1977.01.25
申请人
HITACHI SHIPBUILDING ENG CO;SEIBU KENSETSU KK
发明人
KAWAI NOBUO;KOGASHIWA TSUTOMU;YOSHIKAWA TADAO
分类号
E21D9/12
主分类号
E21D9/12
代理机构
代理人
主权项
地址
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