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发明名称
摘要
申请公布号
JP2525390(Y2)
申请公布日期
1997.02.12
申请号
JP19890117645U
申请日期
1989.10.06
申请人
发明人
分类号
E04B1/66;E04B1/68;E04B1/682;E05G1/00;(IPC1-7):E05G1/00
主分类号
E04B1/66
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