Common details of photographic composing machines of the kinds covered in groups and

Classification Context

Section:

PERFORMING OPERATIONS; TRANSPORTING

Class:

PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS

Subclass:

MACHINES OR ACCESSORIES FOR MAKING, SETTING, OR DISTRIBUTING TYPE; TYPE; PHOTOGRAPHIC OR PHOTOELECTRONIC COMPOSING DEVICES

Child Classifications

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• B41B 21/02 Shutters in optical systems
• B41B 21/08 Light sources; Devices associated therewith, e.g. control devices
• B41B 21/16 Optical systems
• B41B 21/3 Electron-beam tubes or charactrons
• B41B 21/32 Film carriers; Film-conveying or -positioning devices