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发明名称
IMPROVED CONCRETE
摘要
申请公布号
JPS55155864(A)
申请公布日期
1980.12.04
申请号
JP19790064754
申请日期
1979.05.22
申请人
ARAO KK
发明人
ARAO AKIRA
分类号
E04G17/06
主分类号
E04G17/06
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代理人
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