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发明名称
摘要
申请公布号
JPS5469614(U)
申请公布日期
1979.05.17
申请号
JP19770143516U
申请日期
1977.10.26
申请人
发明人
分类号
E04B7/04;E04B7/02;(IPC1-7):E04B7/02
主分类号
E04B7/04
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代理人
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