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发明名称
Seed planter having magnetic seed selecting means
摘要
申请公布号
US2675942(A)
申请公布日期
1954.04.20
申请号
US19480046673
申请日期
1948.08.28
申请人
PROCESSED SEEDS INC.
发明人
VOGELSANG PHELPS
分类号
A01C7/00
主分类号
A01C7/00
代理机构
代理人
主权项
地址
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