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发明名称
摘要
申请公布号
JPS645965(U)
申请公布日期
1989.01.13
申请号
JP19870100324U
申请日期
1987.06.29
申请人
发明人
分类号
E02F9/22;(IPC1-7):E02F9/22;F16H5/28
主分类号
E02F9/22
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