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Priority to ES93281UpriorityCriticalpatent/ES93281Y/en
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Hand Tools For Fitting Together And Separating, Or Other Hand Tools
(AREA)
Abstract
A screwdriver for hexagon socket head screws, essentially characterized in that the screwdriver rod comprises an end head attached to the rod through a neck, the head of which is spherical prismatic with planes forming a hexagon in its cross section, apt to be included tightly in the cavity of the head of the screws. (Machine-translation by Google Translate, not legally binding)
ES93281U1962-05-241962-05-24
Screwdriver for hexagon socket head screws
ExpiredES93281Y
(en)
A screw of polished steel also called of hexagonal head to the base of calibrated rounded rod threaded in its two extremities, placing in one of them the head or nut and fixing it with a pin cylindrical prisoner introduced to pressure in (Machine-translation by Google Translate, not legally binding)