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发明名称
摘要
申请公布号
JPH0254859(U)
申请公布日期
1990.04.20
申请号
JP19880131710U
申请日期
1988.10.07
申请人
发明人
分类号
E02F9/12;B66C23/84;F16J15/32;(IPC1-7):E02F9/12
主分类号
E02F9/12
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