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发明名称
Ink roller brake for printing presses
摘要
申请公布号
US1819329(A)
申请公布日期
1931.08.18
申请号
US19290366021
申请日期
1929.05.25
申请人
HUGHES FREDERICK E
发明人
HUGHES FREDERICK E.
分类号
B41F31/14
主分类号
B41F31/14
代理机构
代理人
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