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发明名称
摘要
申请公布号
JPS5427763(Y1)
申请公布日期
1979.09.08
申请号
JP19690117315U
申请日期
1969.12.10
申请人
发明人
分类号
E02F9/16;E02F3/76;(IPC1-7):E02F3/76
主分类号
E02F9/16
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