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Priority to ES0307199ApriorityCriticalpatent/ES307199A1/en
Publication of ES307199A1publicationCriticalpatent/ES307199A1/en
IMPROVEMENTS IN THE MANUFACTURE OF GRADUABLE SHUTTERS, essentially characterized by being arranged on the sides of the support or fixed table of holes for receiving elongation pivot pieces, in number of two on each side, of variable length and diameter and shape conditioned to that of the socket female, equipped with a central ring that acts as a stop, as well as two other holes, one on each side, the one on the left for housing the pivoting and pivoting part, also of variable length and provided with its stop ring, after which two pulleys that rotate on it are provided, with intermediate spacing of one bushing and final end of the front washer, and the one on the right side for receiving another pivot part of holding, with the same characteristics than the previous one, but with only one pulley. (Machine-translation by Google Translate, not legally binding)
ES0307199A1964-12-161964-12-16Improvements in the manufacture of graduable shutters (Machine-translation by Google Translate, not legally binding)
ExpiredES307199A1
(en)