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发明名称
Seed planter
摘要
申请公布号
US2227759(A)
申请公布日期
1941.01.07
申请号
US19390292237
申请日期
1939.08.28
申请人
NEMANICK RALPH A
发明人
NEMANICK RALPH A.
分类号
A01C5/06
主分类号
A01C5/06
代理机构
代理人
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