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发明名称
摘要
申请公布号
JPS54138403(U)
申请公布日期
1979.09.26
申请号
JP19780034886U
申请日期
1978.03.18
申请人
发明人
分类号
E02F3/40;E02F3/407;(IPC1-7):E02F3/81
主分类号
E02F3/40
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