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发明名称
摘要
申请公布号
JPS4912036(Y1)
申请公布日期
1974.03.23
申请号
JP19700038640U
申请日期
1970.04.20
申请人
发明人
分类号
A01B75/00;A01D67/04;E01H5/04;(IPC1-7):A01D67/04
主分类号
A01B75/00
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代理人
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