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发明名称
摘要
申请公布号
JPH086962(Y2)
申请公布日期
1996.02.28
申请号
JP19910083253U
申请日期
1991.09.18
申请人
发明人
分类号
E04G21/32;(IPC1-7):E04G21/32
主分类号
E04G21/32
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代理人
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