Auxiliary devices for modifying, mixing or correcting text or layout in connection with photographic or photoelectronic composing

Child Classifications

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• B41B 23/02 for mixing by line-by-line projection of parts of texts from a number of films on to another
• B41B 23/04 for facilitating hand correction of texts
• B41B 23/06 for correcting texts by removing incorrect lines from one film and splicing-in corrected lines from another film