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发明名称
摘要
申请公布号
JPH0453911(U)
申请公布日期
1992.05.08
申请号
JP19900096707U
申请日期
1990.09.14
申请人
发明人
分类号
E04D3/40;E04B7/02;(IPC1-7):E04B7/02
主分类号
E04D3/40
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代理人
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