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发明名称
Attachment for cultivator tractors
摘要
申请公布号
US2416271(A)
申请公布日期
1947.02.18
申请号
US19440558095
申请日期
1944.10.10
申请人
F. B. OLSEN
发明人
SCHAAPVELD HENRY J.
分类号
A01B35/10
主分类号
A01B35/10
代理机构
代理人
主权项
地址
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