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发明名称
摘要
申请公布号
JPH0420907(Y2)
申请公布日期
1992.05.13
申请号
JP19870121047U
申请日期
1987.08.07
申请人
发明人
分类号
E04D13/10;(IPC1-7):E04D13/10
主分类号
E04D13/10
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