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经营范围
发明名称
Air classifier
摘要
申请公布号
US1861247(A)
申请公布日期
1932.05.31
申请号
US19290403156
申请日期
1929.10.29
申请人
STEBBINS ALBERT H
发明人
STEBBINS ALBERT H.
分类号
B07B7/08
主分类号
B07B7/08
代理机构
代理人
主权项
地址
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