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经营范围
发明名称
STRETCHING EXCAVATION METHOD
摘要
申请公布号
JPH07138971(A)
申请公布日期
1995.05.30
申请号
JP19930287989
申请日期
1993.11.17
申请人
HAZAMA GUMI LTD
发明人
HIRATA YASUO
分类号
E02F3/92;B63B35/00;E02D23/00;E02D29/045;E02F7/10;E21D13/00;(IPC1-7):E02D29/045
主分类号
E02F3/92
代理机构
代理人
主权项
地址
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