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发明名称
摘要
申请公布号
JPS4722117(U)
申请公布日期
1972.11.13
申请号
JP19710024897U
申请日期
1971.04.02
申请人
发明人
分类号
A01C11/02;A01C5/06;(IPC1-7):A01C5/06
主分类号
A01C11/02
代理机构
代理人
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