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发明名称
摘要
申请公布号
JPS57160363(U)
申请公布日期
1982.10.08
申请号
JP19810044709U
申请日期
1981.03.31
申请人
发明人
分类号
E03B11/02;(IPC1-7):E03B11/02
主分类号
E03B11/02
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