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发明名称
TUNNEL
摘要
申请公布号
JPS52155836(A)
申请公布日期
1977.12.24
申请号
JP19760072774
申请日期
1976.06.22
申请人
TOYO BUSSAN KK
发明人
HOSHINO TAKAHIRO
分类号
E21F16/02;E21D11/38
主分类号
E21F16/02
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代理人
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