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发明名称
摘要
申请公布号
JPS5420193(Y2)
申请公布日期
1979.07.23
申请号
JP19740099247U
申请日期
1974.08.20
申请人
发明人
分类号
E01F7/06;E01F15/00;E04H1/00;(IPC1-7):E01F7/06
主分类号
E01F7/06
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