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经营范围
发明名称
Dust collector
摘要
申请公布号
US2154661(A)
申请公布日期
1939.04.18
申请号
US19370154817
申请日期
1937.07.21
申请人
BRIGGS JR ROBERT A
发明人
JR. ROBERT A. BRIGGS,
分类号
B04C5/081
主分类号
B04C5/081
代理机构
代理人
主权项
地址
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