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发明名称
摘要
申请公布号
JPH0562671(U)
申请公布日期
1993.08.20
申请号
JP19910075412U
申请日期
1991.09.19
申请人
发明人
分类号
E04H12/00;(IPC1-7):E04H12/00
主分类号
E04H12/00
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