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发明名称
摘要
申请公布号
JPH01120553(U)
申请公布日期
1989.08.15
申请号
JP19880015042U
申请日期
1988.02.05
申请人
发明人
分类号
E02F3/407;E02F3/40;(IPC1-7):E02F3/40
主分类号
E02F3/407
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代理人
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