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发明名称
摘要
申请公布号
JPS5398712(U)
申请公布日期
1978.08.10
申请号
JP19770003324U
申请日期
1977.01.14
申请人
发明人
分类号
E04C2/04;E04C2/28;E04D1/28;(IPC1-7):E04D1/28
主分类号
E04C2/04
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代理人
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