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Individual
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Individual
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Priority to ES120149UpriorityCriticalpatent/ES120149Y/en
Publication of ES120149UpublicationCriticalpatent/ES120149U/en
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Publication of ES120149YpublicationCriticalpatent/ES120149Y/en
A ball pen that is characterized by having a hollow prismatic body preferably triangular section formed by rigid planes of transparent material to which body are adapted or fixed at one end a pyramid-shaped head of triangular base whose apex protrudes the tip of the the carrier element gives the ball and at the opposite end a prismatic butt with the sides facing each of said two respective pieces that limit the possible displacement of the body on the body of the ball-point pen and, furthermore, simply placed in the hollow of the body of the ball-point pen a prismatic element of corresponding section in whose faces it has printed two data and convenient mentions in each case. (Machine-translation by Google Translate, not legally binding)