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发明名称
FILLING OF EXCAVATION VOID FOR TUNNEL CONSTRUCTION
摘要
申请公布号
JPS56150298(A)
申请公布日期
1981.11.20
申请号
JP19800049576
申请日期
1980.04.17
申请人
DOKEN SHIZAI KK
发明人
HIRANO TETSUYA
分类号
E21D11/00;E21D9/04
主分类号
E21D11/00
代理机构
代理人
主权项
地址
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