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发明名称
Cultivator
摘要
申请公布号
US1819847(A)
申请公布日期
1931.08.18
申请号
US19280289122
申请日期
1928.06.29
申请人
DEERE & COMPANY
发明人
SILVER WALTER H.
分类号
A01B39/06
主分类号
A01B39/06
代理机构
代理人
主权项
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