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经营范围
发明名称
Hydraulic classifier
摘要
申请公布号
US2967617(A)
申请公布日期
1961.01.10
申请号
US19580721403
申请日期
1958.03.14
申请人
THE AMERICAN AGRICULTURAL CHEMICAL COMPANY
发明人
EVANS ROBERT D.;JR. HARVIE W. BREATHITT,
分类号
B03B5/62
主分类号
B03B5/62
代理机构
代理人
主权项
地址
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