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发明名称
摘要
申请公布号
JPS5552970(Y2)
申请公布日期
1980.12.09
申请号
JP19760066962U
申请日期
1976.05.24
申请人
发明人
分类号
E01F8/00;E04B1/82;E04B1/86;E21D11/38;(IPC1-7):E04B1/86
主分类号
E01F8/00
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