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发明名称
摘要
申请公布号
JPS5230604(U)
申请公布日期
1977.03.03
申请号
JP19750118073U
申请日期
1975.08.26
申请人
发明人
分类号
E02F9/22;E02F3/42;(IPC1-7):E02F3/42
主分类号
E02F9/22
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