The holder has a second part which carries a second part of the magnetic-force apparatus and can be applied to a second side of the pane wherein the holder has a plurality of elastically deformable holding cups on it side that faces towards the pane.
In the case of the holder according to the invention, two contributions to the holding force are obtained: on the one hand, the magnetic contributions and, on the other, the contributions of small holding cups, which work like suction cups. Said suction cups have sharp edges which work their way even through contaminants located on the pane, and thus come directly into contact with the surface of the latter.