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Individual
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Priority to ES1970162537UpriorityCriticalpatent/ES162537Y/es
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Publication of ES162537YpublicationCriticalpatent/ES162537Y/es
Un sello especial, caracterizado esencialmente porque, esté constituido mediante una pieza en U invertida portadora de un cuello superior en la cual se aloja una teja solidaria de la estampa, estando la citada teja prevista de un vástago, asociado a un resorte de expansión, que atravesando al cuello de la pieza en U penetra axilmente en el pomo del sello quedando enfrentado a un tope interno de este último de manera que la presión ejercida sobre dicho pomo produce un movimiento axial del vástago de la teja que determina el desplazamiento consiguiente de la estampa.