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Application filed by Jacques Albert Maigrot, Daniel BlanchofiledCriticalJacques Albert Maigrot
Publication of OA03547ApublicationCriticalpatent/OA03547A/xx
G09B—EDUCATIONAL OR DEMONSTRATION APPLIANCES; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE; MODELS; PLANETARIA; GLOBES; MAPS; DIAGRAMS
G09B13/00—Teaching typing
Landscapes
Engineering & Computer Science
(AREA)
Business, Economics & Management
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Physics & Mathematics
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Educational Administration
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Educational Technology
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General Physics & Mathematics
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Theoretical Computer Science
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OA54123A1970-02-161970-12-21Dispositif destiné à mémoriser les claviers de machines avec affichage des erreurs de frappe.
OA03547A
(fr)