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发明名称
DRAINAGE WORKS FOR SMALL DIAMETER TUNNEL
摘要
申请公布号
JPH04102622(A)
申请公布日期
1992.04.03
申请号
JP19900217768
申请日期
1990.08.18
申请人
KOUWA:KK
发明人
ICHIKAWA TAKESABURO;SATO TAKAHARU;NAGUMO MASAHIRO;MOROHASHI TAKASHI
分类号
E02B11/00;E02D17/20
主分类号
E02B11/00
代理机构
代理人
主权项
地址
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