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经营范围
发明名称
EXCAVATING DEVICE
摘要
申请公布号
JPH112085(A)
申请公布日期
1999.01.06
申请号
JP19980106105
申请日期
1998.04.16
申请人
NIPPON CONCRETE IND CO LTD
发明人
KOMURO HIDEKI;HANDA KENJI;OSHIMA AKIRA;KABASAWA TAKEYUKI
分类号
E21B10/32;E02D7/22;(IPC1-7):E21B10/32
主分类号
E21B10/32
代理机构
代理人
主权项
地址
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