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发明名称
摘要
申请公布号
JPS5432907(U)
申请公布日期
1979.03.03
申请号
JP19770106542U
申请日期
1977.08.09
申请人
发明人
分类号
E04C2/30;(IPC1-7):E04C2/30
主分类号
E04C2/30
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代理人
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