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摘要
申请公布号
JPS57174531(U)
申请公布日期
1982.11.04
申请号
JP19810059212U
申请日期
1981.04.25
申请人
发明人
分类号
E02B7/20;B05B1/06;E02B7/52;F17D1/07;(IPC1-7):E02B7/20
主分类号
E02B7/20
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