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发明名称
摘要
申请公布号
JPS52130125(U)
申请公布日期
1977.10.03
申请号
JP19760039348U
申请日期
1976.03.30
申请人
发明人
分类号
E04D13/072;(IPC1-7):E04D13/06
主分类号
E04D13/072
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代理人
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