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发明名称
Method of and apparatus for collecting dust
摘要
申请公布号
US2336004(A)
申请公布日期
1943.12.07
申请号
US19400348131
申请日期
1940.07.29
申请人
FOWLER BERT F
发明人
FOWLER BERT F.
分类号
B24B55/06
主分类号
B24B55/06
代理机构
代理人
主权项
地址
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