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发明名称
摘要
申请公布号
JPS6225073(Y2)
申请公布日期
1987.06.26
申请号
JP19800134669U
申请日期
1980.09.24
申请人
发明人
分类号
A01C11/00;A01C15/00;(IPC1-7):A01C15/00
主分类号
A01C11/00
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