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经营范围
发明名称
Apparatus for grading heterogeneous or granular products, such as grain, by means of a current of air
摘要
申请公布号
GB684891(A)
申请公布日期
1952.12.24
申请号
GB19510003471
申请日期
1951.02.13
申请人
HARALD ADRIAAN BOK
发明人
分类号
B07B4/02;B07B9/02
主分类号
B07B4/02
代理机构
代理人
主权项
地址
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