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发明名称
摘要
申请公布号
JP2558725(Y2)
申请公布日期
1998.01.14
申请号
JP19910091471U
申请日期
1991.10.11
申请人
发明人
分类号
E04G21/16;(IPC1-7):E04G21/16
主分类号
E04G21/16
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代理人
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地址
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