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Individual
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Priority to ES0053531UpriorityCriticalpatent/ES53531Y/en
Publication of ES53531UpublicationCriticalpatent/ES53531U/en
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Publication of ES53531YpublicationCriticalpatent/ES53531Y/en
An improved ball-point pen, which is characterized by the coupling of two or more sections of the cylinder retracted telescopically inside a similar base, which receives inside the two coil springs, each of a section different and destined to its expulsion reaction, when the containment made on them by the cover or cap ceases. (Machine-translation by Google Translate, not legally binding)