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发明名称
Land leveler
摘要
申请公布号
US2269519(A)
申请公布日期
1942.01.13
申请号
US19400323913
申请日期
1940.03.14
申请人
KILLEFER MANUFACTURING CORPORATION
发明人
CHRISTENSON GEORGE A.
分类号
A01B31/00
主分类号
A01B31/00
代理机构
代理人
主权项
地址
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