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发明名称
Doughnut machine
摘要
申请公布号
US2199266(A)
申请公布日期
1940.04.30
申请号
US19390289871
申请日期
1939.08.12
申请人
FREDERICK MAIER
发明人
MAIER FREDERICK
分类号
A21B5/08
主分类号
A21B5/08
代理机构
代理人
主权项
地址
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