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发明名称
摘要
申请公布号
JPS5677541(U)
申请公布日期
1981.06.24
申请号
JP19790159623U
申请日期
1979.11.17
申请人
发明人
分类号
E02B11/00;E02D3/10;(IPC1-7):E02D3/10
主分类号
E02B11/00
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代理人
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