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发明名称
Disk terracing machine
摘要
申请公布号
US2672803(A)
申请公布日期
1954.03.23
申请号
US19500198681
申请日期
1950.12.01
申请人
DEERE & COMPANY
发明人
SILVER WALTER H.;COX ROBERT E.
分类号
A01B5/12
主分类号
A01B5/12
代理机构
代理人
主权项
地址
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