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经营范围
发明名称
Groove forming, seed orienting planter shoe
摘要
申请公布号
US3217674(A)
申请公布日期
1965.11.16
申请号
US19630333146
申请日期
1963.12.24
申请人
ACRA-PLANT, INC.
发明人
WILLIAMS DONALD E.
分类号
A01C5/06
主分类号
A01C5/06
代理机构
代理人
主权项
地址
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