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发明名称
Combined seed planter
摘要
申请公布号
US1994552(A)
申请公布日期
1935.03.19
申请号
US19340721500
申请日期
1934.04.20
申请人
EDWARD WEHRHAN
发明人
WEHRHAN EDWARD
分类号
A01C7/06
主分类号
A01C7/06
代理机构
代理人
主权项
地址
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