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发明名称
GUIDING FACILITY IN TUNNEL
摘要
申请公布号
JPH02308099(A)
申请公布日期
1990.12.21
申请号
JP19890128972
申请日期
1989.05.24
申请人
NOHMI BOSAI LTD
发明人
KANEKO MASAO;UCHIYAMA JUN;MATSUZAKI YOJI
分类号
E21F11/00;A62B3/00
主分类号
E21F11/00
代理机构
代理人
主权项
地址
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