FR664953A - Perfectionnements aux appareils indicateurs permettant de trouver rapidement un point cherché sur une carte géographique, un plan de ville ou autre
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Perfectionnements aux appareils indicateurs permettant de trouver rapidement un point cherché sur une carte géographique, un plan de ville ou autre
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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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Theoretical Computer Science
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Mathematical Physics
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General Physics & Mathematics
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FR664953D1928-03-101928-03-10Perfectionnements aux appareils indicateurs permettant de trouver rapidement un point cherché sur une carte géographique, un plan de ville ou autre
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