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发明名称
Control of harrows
摘要
申请公布号
US2237884(A)
申请公布日期
1941.04.08
申请号
US19400353103
申请日期
1940.08.17
申请人
INTERNATIONAL HARVESTER COMPANY
发明人
LYSEDAHL ROLAND H.
分类号
A01B23/04
主分类号
A01B23/04
代理机构
代理人
主权项
地址
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