ES11526A1 - Un nuevo sistema para aprender el sistema métrico decimal en relación con los sistemas antiguos por medio de la "Baraja Métrico decimal".
- Google Patents
Un nuevo sistema para aprender el sistema métrico decimal en relación con los sistemas antiguos por medio de la "Baraja Métrico decimal".
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ES11526A1890-12-021890-12-02Un nuevo sistema para aprender el sistema métrico decimal en relación con los sistemas antiguos por medio de la "Baraja Métrico decimal".
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