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发明名称
摘要
申请公布号
JPS473709(Y1)
申请公布日期
1972.02.08
申请号
JP19680044652U
申请日期
1968.05.29
申请人
发明人
分类号
(IPC1-7):A01C11/02
主分类号
(IPC1-7):A01C11/02
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