Method of incorporating lettering in printed color reproductions |
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申请号 | US3249448 | 申请日 | 1948-06-11 | 公开(公告)号 | US2605181A | 公开(公告)日 | 1952-07-29 |
申请人 | EDWARD ALEXANDER HAROLD; FREDERICK COOK CHARLES; | 发明人 | EDWARD ALEXANDER HAROLD; FREDERICK COOK CHARLES; | ||||
摘要 | |||||||
权利要求 | |||||||
说明书全文 |