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发明名称
OPENING STRUCTURE OF UNDERGROUND TYPE REGULATING RESERVOIR
摘要
申请公布号
JPH0649889(A)
申请公布日期
1994.02.22
申请号
JP19920222073
申请日期
1992.07.29
申请人
FUJITA CORP;TSURUMI CONCRETE KK;KEIHAN CONCRETE KOGYO KK
发明人
ISHIDA MASAJI;TSUCHIYA HIROAKI;OKUDA TAKAO
分类号
E03F1/00;(IPC1-7):E03F1/00
主分类号
E03F1/00
代理机构
代理人
主权项
地址
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