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发明名称
摘要
申请公布号
JPS5659229(U)
申请公布日期
1981.05.21
申请号
JP19800139659U
申请日期
1980.10.02
申请人
发明人
分类号
E02B3/14;(IPC1-7):E02B3/14
主分类号
E02B3/14
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