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发明名称
摘要
申请公布号
JPS5551190(U)
申请公布日期
1980.04.04
申请号
JP19780135783U
申请日期
1978.10.03
申请人
发明人
分类号
A01C7/12;A01C5/06;(IPC1-7):A01C5/06
主分类号
A01C7/12
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