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发明名称
摘要
申请公布号
JPH03128147(U)
申请公布日期
1991.12.24
申请号
JP19900037898U
申请日期
1990.04.09
申请人
发明人
分类号
E04F15/00;E04F15/024;E04F15/18;(IPC1-7):E04F15/024
主分类号
E04F15/00
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