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Individual
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Individual
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Priority to ES0054687UpriorityCriticalpatent/ES54687U/en
Publication of ES54687UpublicationCriticalpatent/ES54687U/en
An improved screwdriver, essentially characterized by two steel foils laid on it the end of a rod on which slides a cylindrical envelope cover, which when advancing or retracting determines the closing or opening of said metal foils, which when they are open acting as a clamp, while being closed and coincident their beveled ends allow inserting said edge into the transverse groove of the head of the screw, then used as a screwdriver. (Machine-translation by Google Translate, not legally binding)
ES0054687U1956-06-051956-06-05Improved screwdriver (Machine-translation by Google Translate, not legally binding)
PendingES54687U
(en)