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发明名称
摘要
申请公布号
JPS52111661(U)
申请公布日期
1977.08.24
申请号
JP19760019520U
申请日期
1976.02.21
申请人
发明人
分类号
A01F12/40;A01D43/08;A01F17/00;(IPC1-7):A01F17/00
主分类号
A01F12/40
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代理人
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