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经营范围
发明名称
Covering devices for grain drills
摘要
申请公布号
US3202119(A)
申请公布日期
1965.08.24
申请号
US19610120638
申请日期
1961.06.29
申请人
DEERE & COMPANY
发明人
LOOMANS ROBERT E.
分类号
A01C5/06
主分类号
A01C5/06
代理机构
代理人
主权项
地址
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