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发明名称
摘要
申请公布号
JPH0264621(U)
申请公布日期
1990.05.15
申请号
JP19880144207U
申请日期
1988.11.04
申请人
发明人
分类号
E04D1/18;(IPC1-7):E04D1/18
主分类号
E04D1/18
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