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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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FR715813D1931-02-251931-04-22Système indicateur pour itinéraires, cartes routières d'automobilistes, plans de villes, etc.
ExpiredFR715813A
(fr)
Perfectionnements aux cherche-route ou indicateurs de route ou de position pour cartes ou plans de villes, de campagne, d'expositions, de chemins de fer, etc.
Perfectionnements aux cherche-route ou indicateurs de route ou de position pour cartes ou plans de villes, de campagne, d'expositions, de chemins de fer, etc.