Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Societe des Telephones Ericsson SA
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Societe des Telephones Ericsson SA
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Application filed by Societe des Telephones Ericsson SAfiledCriticalSociete des Telephones Ericsson SA
Priority to FR51751ApriorityCriticalpatent/FR1476807A/fr
Application grantedgrantedCritical
Publication of FR1476807ApublicationCriticalpatent/FR1476807A/fr
G09B—EDUCATIONAL OR DEMONSTRATION APPLIANCES; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE; MODELS; PLANETARIA; GLOBES; MAPS; DIAGRAMS
G09B19/00—Teaching not covered by other main groups of this subclass
G09B19/003—Repetitive work cycles; Sequence of movements
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FR51751A1966-03-021966-03-02Procédé et dispositif d'enregistrement et de reproduction sonore
ExpiredFR1476807A
(fr)