B41B23/00 - CPC Classification

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

• B41B23/02 » for mixing by line-by-line projection of parts of texts from a number of films on to another 0
• B41B23/04 » for facilitating hand correction of texts 0
• B41B23/06 » for correcting texts by removing incorrect lines from one film and splicing-in corrected lines from another film 0