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发明名称
摘要
申请公布号
JPS5758265(Y2)
申请公布日期
1982.12.14
申请号
JP19780152927U
申请日期
1978.11.08
申请人
发明人
分类号
E01H8/10;E01H8/12;(IPC1-7):E01H8/12
主分类号
E01H8/10
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