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Individual
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Individual
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Priority to ES0029900UpriorityCriticalpatent/ES29900U/en
Publication of ES29900UpublicationCriticalpatent/ES29900U/en
Mechanical Pencils And Projecting And Retracting Systems Therefor, And Multi-System Writing Instruments
(AREA)
Abstract
Lead pencil made up of a tubular body with the internal surface threaded and inside which there is a sleeve or slit that occupies the entire hollow of the body of the pencil and protrudes at its end opposite the tip where it bears a button to turn it, in combination with a pencil, arranged inside this split tube and provided with a serrated protrusion that protrudes through the slit of the tube and engages in the thread of the body of the pencil, so that by rotating the split tube, the slide is moves along the pencil in one direction or another, taking the mine with it. (Machine-translation by Google Translate, not legally binding)
ES0029900U1952-02-011952-02-01Pencil pencil (Machine-translation by Google Translate, not legally binding)
PendingES29900U
(en)