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发明名称
摘要
申请公布号
JPS5816223(U)
申请公布日期
1983.02.01
申请号
JP19810109559U
申请日期
1981.07.22
申请人
发明人
分类号
E02B11/00;E02B9/02;E02D3/10;(IPC1-7):E02B9/02
主分类号
E02B11/00
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代理人
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