Common details of photographic composing machines of the kinds covered in groups B41B17/00 and B41B19/00

Child Classifications

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• B41B 21/02 Shutters in optical systems (in general G03B)
• B41B 21/08 Light sources; Devices associated therewith, e.g. control devices
• B41B 21/16 Optical systems (shutters B41B21/02; light sources B41B21/08)
• B41B 21/30 Electron-beam tubes or charactrons (in general H01J31/00)
• B41B 21/32 Film carriers; Film-conveying or positioning devices (film-handling means in line-composing photographic devices B41B15/32; machines with means for moving the film in its plane for photographing characters in succession B41B17/16)