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经营范围
发明名称
GROUND EXCAVATOR
摘要
申请公布号
JPS6245891(A)
申请公布日期
1987.02.27
申请号
JP19850184766
申请日期
1985.08.22
申请人
NIPPON IKOSU KK
发明人
MOROOKA TATSUO
分类号
E21B4/00;E21B4/02
主分类号
E21B4/00
代理机构
代理人
主权项
地址
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