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发明名称
摘要
申请公布号
JPS5647013(U)
申请公布日期
1981.04.27
申请号
JP19790127666U
申请日期
1979.09.14
申请人
发明人
分类号
E04B2/74;E04B2/76;(IPC1-7):E04B2/76
主分类号
E04B2/74
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代理人
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