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G09B—EDUCATIONAL OR DEMONSTRATION APPLIANCES; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE; MODELS; PLANETARIA; GLOBES; MAPS; DIAGRAMS
G09B29/00—Maps; Plans; Charts; Diagrams, e.g. route diagram
G09B29/10—Map spot or coordinate position indicators; Map reading aids
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FR603449D1925-09-211925-09-21Dispositif chercheur pour cartes géographiques, plans de villes et similaires
ExpiredFR603449A
(fr)