Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
G09B—EDUCATIONAL OR DEMONSTRATION APPLIANCES; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE; MODELS; PLANETARIA; GLOBES; MAPS; DIAGRAMS
G09B19/00—Teaching not covered by other main groups of this subclass
Stehende Schultafel, stehendes Zeichenbrett u. dgl., welche der Hoehe nach verstellbar sind, mit einer der um eine wagerechte Achse drehbaren Haupttafel als Gegengewicht dienenden Nebentafel