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发明名称
Beet digging device
摘要
申请公布号
US1993176(A)
申请公布日期
1935.03.05
申请号
US19340704896
申请日期
1934.01.02
申请人
CARL LUNDGREN
发明人
LUNDGREN CARL
分类号
A01D25/02
主分类号
A01D25/02
代理机构
代理人
主权项
地址
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