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Individual
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Individual
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Priority to ES0053385UpriorityCriticalpatent/ES53385Y/en
Publication of ES53385UpublicationCriticalpatent/ES53385U/en
Application grantedgrantedCritical
Publication of ES53385YpublicationCriticalpatent/ES53385Y/en
An automatic board for planning charts, which is characterized by being a flat surface of variable measures in which there is a central space profusely drilled by holes arranged in horizontal rows and other verticals that coordinate with the previous ones, apt to receive in them the insertion of pins carrying the end of an elastic thread passing to the back of the board through the first hole of each row, is linked in a metal spring of appropriate nature, which in turn is retained in the rear edge of the board. (Machine-translation by Google Translate, not legally binding)
ES0053385U1956-03-241956-03-24
Automatic dashboard for chart planning
ExpiredES53385Y
(en)