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发明名称
摘要
申请公布号
JPS56130010(U)
申请公布日期
1981.10.02
申请号
JP19800026053U
申请日期
1980.02.27
申请人
发明人
分类号
E01F7/02;(IPC1-7):E01F7/02
主分类号
E01F7/02
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