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发明名称
Increasing contrast of halftone reproductions
摘要
申请公布号
US2691580(A)
申请公布日期
1954.10.12
申请号
US19530376847
申请日期
1953.08.27
申请人
EASTMAN KODAK COMPANY
发明人
HOWE DONALD J.
分类号
G03F5/00
主分类号
G03F5/00
代理机构
代理人
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地址
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