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发明名称
摘要
申请公布号
JPH0315952(U)
申请公布日期
1991.02.18
申请号
JP19890076517U
申请日期
1989.06.29
申请人
发明人
分类号
E04G17/07;(IPC1-7):E04G17/07
主分类号
E04G17/07
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代理人
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地址
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