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发明名称
COVER FOR UNDERGROUND STRUCTURE
摘要
申请公布号
JPH09291554(A)
申请公布日期
1997.11.11
申请号
JP19960127790
申请日期
1996.04.24
申请人
ASAHI TEC CORP;NHK SPRING CO LTD
发明人
KOJIMA MASA;NISHIMURA SEI
分类号
E02D29/14;(IPC1-7):E02D29/14
主分类号
E02D29/14
代理机构
代理人
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地址
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