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发明名称
摘要
申请公布号
JPS54175125(U)
申请公布日期
1979.12.11
申请号
JP19780073916U
申请日期
1978.05.30
申请人
发明人
分类号
E01C23/12;B23D31/00;E04G23/08;(IPC1-7):E04G23/08
主分类号
E01C23/12
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代理人
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