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发明名称
摘要
申请公布号
JPH0291828(U)
申请公布日期
1990.07.20
申请号
JP19880170765U
申请日期
1988.12.29
申请人
发明人
分类号
E04D15/04;(IPC1-7):E04D15/04
主分类号
E04D15/04
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代理人
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