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Priority to ES1969146731UpriorityCriticalpatent/ES146731Y/en
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Publication of ES146731YpublicationCriticalpatent/ES146731Y/en
Children's arithmetic initiation game, which is characterized by comprising a plurality of chips, at least as many as numbers digits, in each of which is plotted and embossed a different figure, comprising at the same time the expression of the same number by means of relief points, arranged neatly, over which by simple tactile account the child can relate the actual magnitude of the figure with its written symbol, also presenting each chip on its opposite edges as many leads as units has the figure of the chip precedent and as many entrants as units the own number, with what they can fit neatly, and only in their correlative order, in order to learn the sequence of the numbers, the cards in question. (Machine-translation by Google Translate, not legally binding)
ES1969146731U1969-03-201969-03-20
CHILDREN'S GAME OF ARITHMETRIC INITIATION.
ExpiredES146731Y
(en)