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发明名称
TUNNEL ENLARGING AND DRILLING APPARATUS
摘要
申请公布号
JPS59102087(A)
申请公布日期
1984.06.12
申请号
JP19820211357
申请日期
1982.12.03
申请人
MITSUI KENSETSU KK
发明人
INOUE KAZUTOSHI;YUASA YASUTAKA;SHIMIZU YASUO
分类号
E21D9/06
主分类号
E21D9/06
代理机构
代理人
主权项
地址
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