A simulator is regarded as a teaching or training device proper to this sub-class if the simulator gives perceptible sensations having a likeness to the sensations the student would experience in reality in response to actions taken by him. Simulators which demonstrate by means involving computing, the functioning of apparatus or of a system are classified in class Fulltext... Hierarchy... Expanded...G06 if no provision exists elsewhere. Simulator components which are identical with real devices or machines or components thereof are classified in the relevant sub-classes for these devices or machines and not in sub-class Fulltext... Hierarchy... Expanded...G09B.
Models of buildings, installations, or the like are covered by this sub-class.
This sub-class includes devices for displaying information:
by selecting one or more individual alphanumeric characters or other symbols or combinations thereof from a multiplicity of such characters or symbols;
by selecting a combination of elements to build-up the desired character or symbol.