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发明名称
Mechanical rake classifier
摘要
申请公布号
US2445251(A)
申请公布日期
1948.07.13
申请号
US19440520018
申请日期
1944.01.28
申请人
TESSIN FRED F
发明人
TESSIN FRED F.
分类号
B03B5/50
主分类号
B03B5/50
代理机构
代理人
主权项
地址
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