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发明名称
Sand scrubber
摘要
申请公布号
US2477948(A)
申请公布日期
1949.08.02
申请号
US19460702945
申请日期
1946.10.12
申请人
THE DORR COMPANY
发明人
ALLEN CLIFTON H.
分类号
B22C5/00;B22C5/18
主分类号
B22C5/00
代理机构
代理人
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地址
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