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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
G09B19/00—Teaching not covered by other main groups of this subclass
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Business, Economics & Management
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Entrepreneurship & Innovation
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Physics & Mathematics
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Educational Administration
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Theoretical Computer Science
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Carte a jouer educative pour enseigner a lire, a ecrire et a compter, comportant une decoupe en reserve de chaque lettre de l'alphabet ou de chaque caractere representant un nombre, et son procede d'utilisation
Calculator for instantaneous and cumulative job cost - displays input hourly wages of participants in various denominations, updated at one-minute intervals