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发明名称
Dam forming device
摘要
申请公布号
US2272096(A)
申请公布日期
1942.02.03
申请号
US19400327218
申请日期
1940.04.01
申请人
DEERE & COMPANY
发明人
SILVER WALTER H.
分类号
A01B13/16;A01C7/08
主分类号
A01B13/16
代理机构
代理人
主权项
地址
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