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Individual
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Individual
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Priority to ES122393UpriorityCriticalpatent/ES122393Y/en
Publication of ES122393UpublicationCriticalpatent/ES122393U/en
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Publication of ES122393YpublicationCriticalpatent/ES122393Y/en
A pilot tool essentially characterized by the fact that on the handle adjusted in its configuration and dimension to the destination use is inserted a head of solid hard metal or other material of similar qualities and with a dimension that ranges between 5 and 50m/m. Head in which one or more toothed with variable angles that can be straight helical inclined and of trapezoidal and conical spherical shapes and simultaneously of several of said forms and of different diameters are removed. (Machine-translation by Google Translate, not legally binding)
ES122393U1966-03-121966-03-12
PILOT TOOL.
ExpiredES122393Y
(en)
Device, in particular writing implement, with two parts, one of which forms a sleeve that can be attached and removed at at least one point in the other part