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经营范围
发明名称
HOLE DIGGING MACHINE
摘要
申请公布号
JPS6187092(A)
申请公布日期
1986.05.02
申请号
JP19840208695
申请日期
1984.10.04
申请人
TOKYO SEISAKUSHO:KK
发明人
INOUE HACHIRO;SENDA SHOHEI
分类号
E21B7/00;E21B3/00;E21D1/06;E21D9/08;E21D9/10;(IPC1-7):E21B3/00
主分类号
E21B7/00
代理机构
代理人
主权项
地址
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