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发明名称
Agricultural implement
摘要
申请公布号
US1944937(A)
申请公布日期
1934.01.30
申请号
US19320629600
申请日期
1932.08.20
申请人
ROTOTILLER INC.
发明人
KELSEY CADWALLADER WASHBURN
分类号
A01B33/14
主分类号
A01B33/14
代理机构
代理人
主权项
地址
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