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发明名称
摘要
申请公布号
JPS5592742(U)
申请公布日期
1980.06.26
申请号
JP19780175768U
申请日期
1978.12.18
申请人
发明人
分类号
E02D7/20;E02D13/00;(IPC1-7):E02D13/00
主分类号
E02D7/20
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