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发明名称
摘要
申请公布号
JPH0250450(U)
申请公布日期
1990.04.09
申请号
JP19880128695U
申请日期
1988.09.30
申请人
发明人
分类号
E02F9/00;(IPC1-7):E02F9/00
主分类号
E02F9/00
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