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发明名称
Ash sifter
摘要
申请公布号
US1859373(A)
申请公布日期
1932.05.24
申请号
US19310551026
申请日期
1931.07.15
申请人
JOHN NESE
发明人
NESE JOHN
分类号
F24B13/00;F24B15/00
主分类号
F24B13/00
代理机构
代理人
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