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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
G09B29/02—Maps; Plans; Charts; Diagrams, e.g. route diagram sectional
G09B29/04—Maps; Plans; Charts; Diagrams, e.g. route diagram sectional the sections being arranged in the form of a foldable sheet or sheets
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FR416871D1909-04-061910-03-25Plan panoramique ou d'orientation pour voyageurs de chemin de fer
ExpiredFR416871A
(fr)