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发明名称
摘要
申请公布号
JPS5048417(U)
申请公布日期
1975.05.13
申请号
JP19730101806U
申请日期
1973.08.30
申请人
发明人
分类号
E04B2/00;(IPC1-7):E04C2/46
主分类号
E04B2/00
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代理人
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地址
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