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发明名称
Harrow
摘要
申请公布号
US1820541(A)
申请公布日期
1931.08.25
申请号
US19290347831
申请日期
1929.03.18
申请人
DEERE & COMPANY
发明人
PAUL WILLIAM L.
分类号
A01B19/10
主分类号
A01B19/10
代理机构
代理人
主权项
地址
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