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发明名称
Foldable harrow frame with harrow section elevating means
摘要
申请公布号
US3122210(A)
申请公布日期
1964.02.25
申请号
US19620227850
申请日期
1962.10.02
申请人
FRENCH DAMAS J
发明人
FRENCH DAMAS J.
分类号
A01B73/02
主分类号
A01B73/02
代理机构
代理人
主权项
地址
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