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发明名称
摘要
申请公布号
JPH0439214(U)
申请公布日期
1992.04.02
申请号
JP19900082062U
申请日期
1990.07.31
申请人
发明人
分类号
E04D1/12;(IPC1-7):E04D1/12
主分类号
E04D1/12
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代理人
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地址
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