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发明名称
REINFORCED STRUCTURE OF TWIN TUNNELS
摘要
申请公布号
JPH03202599(A)
申请公布日期
1991.09.04
申请号
JP19890342290
申请日期
1989.12.28
申请人
SHIMIZU CORP
发明人
SUGANUMA YOSHINORI;YAMAMOTO KAZUYOSHI
分类号
E21D9/14;E21D9/04
主分类号
E21D9/14
代理机构
代理人
主权项
地址
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INSPECTING PORT FRAME
BORING APPARATUS
TIME SIGNAL GENERATOR
INTERNAL COMBUSTION ENGINE WITH MUFFLER HOOD
CONNECTION OF DROP-IN SINK TOP COMPRISING ARTIFICIAL MARBLE IN COUNTER TYPE SINK TABLE
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