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发明名称
PROPULSORY DEVICE FOR SHIELD EXCAVATOR
摘要
申请公布号
JPH0317393(A)
申请公布日期
1991.01.25
申请号
JP19890152679
申请日期
1989.06.14
申请人
HITACHI CONSTR MACH CO LTD
发明人
MORI YASUO;ISHIKAWA YASUAKI;YAMAZAKI HIDETSUGU
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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