Exchangeable frame system for flat advertising media, has masking frame with holders for advertising medium, and carrier frame connected to substrate on rear side

摘要

Each sub-exchangeable frame has a masking frame and a carrier frame which can be moved relative to each other. The masking frame has holders for an advertising medium. The carrier frame is connected to the substrate on the rear side. The masking frame and carrier frame are connected so that the masking frame protrudes laterally over the carrier frame.