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经营范围
发明名称
Nut and small object collector
摘要
申请公布号
US2427486(A)
申请公布日期
1947.09.16
申请号
US19450596501
申请日期
1945.05.29
申请人
WYLAND JOHN D
发明人
WYLAND JOHN D.
分类号
A01D51/00
主分类号
A01D51/00
代理机构
代理人
主权项
地址
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