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发明名称
UNDERGROUND EXCAVATOR
摘要
申请公布号
JPS6483798(A)
申请公布日期
1989.03.29
申请号
JP19870240677
申请日期
1987.09.28
申请人
KYOEI DOKEN:KK;SUMIYOSHI HEAVY IND CO LTD
发明人
MIYAZAKI MAMORU;KAGAWA YASUHIRO
分类号
E21D9/12
主分类号
E21D9/12
代理机构
代理人
主权项
地址
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