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Individual
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Individual
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Priority to ES1966130165UpriorityCriticalpatent/ES130165Y/en
Publication of ES130165UpublicationCriticalpatent/ES130165U/en
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Publication of ES130165YpublicationCriticalpatent/ES130165Y/en
Device of strips for teaching, characterized by comprising nine rules of resistant material of rectangular section that in one of its figures have a quadrangular channel practiced longitudinally in the center of its width, each of which receives in progressive order some sliding slides in the channel and of its same section that have a variable length and comprised between one and nine units, increasing one in one of the lengths obtained for the rules 9, 18, 27, 36, 45, 54, 63, 72 and 81 units in length, each one of them presenting a different color corresponding to the color of the reglillas that it houses, showing along with the channel inscriptions made with indication of the corresponding numbers and at a distance equal to each one of the reglillas that it houses. (Machine-translation by Google Translate, not legally binding)
ES1966130165U1966-08-051966-08-05
RULER DEVICE FOR TEACHING.
ExpiredES130165Y
(en)
Pocket table, indicator of the equivalences between measures and currencies of different countries (Machine-translation by Google Translate, not legally binding)
Device for coupling in linear succession and for didactic purposes, letters, numbers and signs. (Machine-translation by Google Translate, not legally binding)