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发明名称
摘要
申请公布号
JPS5567252(U)
申请公布日期
1980.05.09
申请号
JP19780148901U
申请日期
1978.10.31
申请人
发明人
分类号
E02F9/28;E02F3/64;(IPC1-7):E02F3/64
主分类号
E02F9/28
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代理人
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