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发明名称
Attachment for contour farming apparatus
摘要
申请公布号
US2216086(A)
申请公布日期
1940.09.24
申请号
US19380198791
申请日期
1938.03.29
申请人
MEENAN LEO E
发明人
MEENAN LEO E.
分类号
G01C9/06
主分类号
G01C9/06
代理机构
代理人
主权项
地址
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