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发明名称
Centrifugal spiral agitator
摘要
申请公布号
US1915053(A)
申请公布日期
1933.06.20
申请号
US19310521121
申请日期
1931.03.09
申请人
H. F. BROWNELL
发明人
DOBYNS DAVID E.
分类号
A47J43/07
主分类号
A47J43/07
代理机构
代理人
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地址
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