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发明名称
摘要
申请公布号
JPS5686227(U)
申请公布日期
1981.07.10
申请号
JP19790168387U
申请日期
1979.12.05
申请人
发明人
分类号
E04B1/70;E04D13/15;E04D13/152;E04D13/158;E04D13/16;(IPC1-7):E04D13/15
主分类号
E04B1/70
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代理人
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