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发明名称
摘要
申请公布号
JPH0373336(U)
申请公布日期
1991.07.24
申请号
JP19890135869U
申请日期
1989.11.21
申请人
发明人
分类号
E04D13/064;(IPC1-7):E04D13/06
主分类号
E04D13/064
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