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发明名称
摘要
申请公布号
JPH01137347(U)
申请公布日期
1989.09.20
申请号
JP19880032675U
申请日期
1988.03.14
申请人
发明人
分类号
E02F3/345;E02F3/43;(IPC1-7):E02F3/43
主分类号
E02F3/345
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代理人
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