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发明名称
摘要
申请公布号
JPS57110143(U)
申请公布日期
1982.07.07
申请号
JP19800187119U
申请日期
1980.12.25
申请人
发明人
分类号
E02D17/20;E02D29/02;(IPC1-7):E02D17/20
主分类号
E02D17/20
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