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
G09B19/06—Foreign languages
G09B19/08—Printed or written appliances, e.g. text books, bilingual letter assemblies, charts
Landscapes
Engineering & Computer Science
(AREA)
Business, Economics & Management
(AREA)
Computational Linguistics
(AREA)
Entrepreneurship & Innovation
(AREA)
Physics & Mathematics
(AREA)
Educational Administration
(AREA)
Educational Technology
(AREA)
General Physics & Mathematics
(AREA)
Theoretical Computer Science
(AREA)
Insulated Conductors
(AREA)
Financial Or Insurance-Related Operations Such As Payment And Settlement
(AREA)