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发明名称
摘要
申请公布号
JPS62154020(U)
申请公布日期
1987.09.30
申请号
JP19860029585U
申请日期
1986.02.28
申请人
发明人
分类号
E01H3/04;E01H5/00;E02B7/02;E03F5/02;E03F5/10;(IPC1-7):E01H5/00
主分类号
E01H3/04
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代理人
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