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发明名称
摘要
申请公布号
JPH0484647(U)
申请公布日期
1992.07.23
申请号
JP19900129221U
申请日期
1990.11.30
申请人
发明人
分类号
E04F15/00;E04F15/024;(IPC1-7):E04F15/024
主分类号
E04F15/00
代理机构
代理人
主权项
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