G09B—EDUCATIONAL OR DEMONSTRATION APPLIANCES; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE; MODELS; PLANETARIA; GLOBES; MAPS; DIAGRAMS
G09B17/00—Teaching reading
Landscapes
Engineering & Computer Science
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Business, Economics & Management
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Physics & Mathematics
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Educational Administration
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Educational Technology
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General Physics & Mathematics
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Theoretical Computer Science
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Developing Agents For Electrophotography
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Diaphragms For Electromechanical Transducers
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Financial Or Insurance-Related Operations Such As Payment And Settlement
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