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发明名称
Dust concentrator
摘要
申请公布号
US2339416(A)
申请公布日期
1944.01.18
申请号
US19410378953
申请日期
1941.02.14
申请人
B. F. STURTEVANT COMPANY
发明人
MCDONALD JOHN E.
分类号
B04C7/00
主分类号
B04C7/00
代理机构
代理人
主权项
地址
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