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发明名称
摘要
申请公布号
JPS57135205(U)
申请公布日期
1982.08.23
申请号
JP19810021572U
申请日期
1981.02.17
申请人
发明人
分类号
A01B69/00;A01C11/02;G05D1/02;(IPC1-7):A01B69/00
主分类号
A01B69/00
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代理人
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