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发明名称
Corn planter
摘要
申请公布号
US2178053(A)
申请公布日期
1939.10.31
申请号
US19380207605
申请日期
1938.05.12
申请人
STEWART ROBERT B
发明人
STEWART ROBERT B.
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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