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发明名称
Device for sifting flour and other powdered materials
摘要
申请公布号
US1953369(A)
申请公布日期
1934.04.03
申请号
US19320620246
申请日期
1932.06.30
申请人
STAHL THOMAS J
发明人
STAHL THOMAS J.
分类号
A47J43/22
主分类号
A47J43/22
代理机构
代理人
主权项
地址
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