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发明名称
Powder sifter
摘要
申请公布号
US2149183(A)
申请公布日期
1939.02.28
申请号
US19380210208
申请日期
1938.05.26
申请人
EVANS CASE COMPANY
发明人
REILLY ALFRED F.
分类号
A45D33/00
主分类号
A45D33/00
代理机构
代理人
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