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发明名称
摘要
申请公布号
JPH033697(Y2)
申请公布日期
1991.01.30
申请号
JP19840197227U
申请日期
1984.12.24
申请人
发明人
分类号
E04D1/30;(IPC1-7):E04D1/30
主分类号
E04D1/30
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