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经营范围
发明名称
Corn planter
摘要
申请公布号
US2587386(A)
申请公布日期
1952.02.26
申请号
US19470732576
申请日期
1947.03.05
申请人
ROUNDS RALPH W
发明人
ROUNDS RALPH W.
分类号
A01C7/18
主分类号
A01C7/18
代理机构
代理人
主权项
地址
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