Blackboard based holder e.g. for posters, has transparent protective cover with retaining strips arranged along edges of rear wall with cover released in open position for inserting and removing posters

摘要

u The board has a transparent protective cover with retaining strips arranged along edges of a rear wall. The protective cover is released in an open position for inserting and removing posters and is pressed in a closed position with an edge zone being against the rear wall protective cover. The retaining strips in upright position press against two lateral edges (3a, 3c) of the rear wall (3) at the edge zones (11) of the front parts (9). The retaining strips (6) seals (12) against a penetration of humidity between the front parts of the retaining strips and the protective cover (5).