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发明名称
Detachable grain saving guard
摘要
申请公布号
US2278814(A)
申请公布日期
1942.04.07
申请号
US19410390792
申请日期
1941.04.28
申请人
WIERSIG CARL J
发明人
WIERSIG CARL J.
分类号
A01D65/02
主分类号
A01D65/02
代理机构
代理人
主权项
地址
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