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Application filed by Ikounga Martial De PaulfiledCriticalIkounga Martial De Paul
Priority to OA59423ApriorityCriticalpatent/OA09007A/fr
Publication of OA09007ApublicationCriticalpatent/OA09007A/fr
G09B—EDUCATIONAL OR DEMONSTRATION APPLIANCES; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE; MODELS; PLANETARIA; GLOBES; MAPS; DIAGRAMS
G09B17/00—Teaching reading
G09B17/02—Line indicators or other guides or masks