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发明名称
Retarded float control mechanism for coal washing jigs
摘要
申请公布号
US2421576(A)
申请公布日期
1947.06.03
申请号
US19440527743
申请日期
1944.03.23
申请人
MERVYN NORTON RONALD
发明人
NORTON RONALD MERVYN
分类号
B03B5/24
主分类号
B03B5/24
代理机构
代理人
主权项
地址
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