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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
G09B29/003—Maps
G09B29/005—Map projections or methods associated specifically therewith
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FR662296D1928-02-081928-02-08
Cartographic process and new products obtained by this process
ExpiredFR662296A
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