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Soc Ind Des Plastiques Injectes
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Soc Ind Des Plastiques Injectes
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Priority to ES227913ApriorityCriticalpatent/ES227913A3/en
Publication of ES227913A3publicationCriticalpatent/ES227913A3/en
Drive mechanism for "retractable" pens, characterized in that it implies a new application of the plastic material, by virtue of its elasticity, to form a piece that, in the pens retractable pens, constitutes at the same time the pushing organ of the cartridge and its organ of retention in the position of use, by penetration of a pin with the profile of the usual prominence that is provided, inside the hole and the groove made in the body of the pen. (Machine-translation by Google Translate, not legally binding)
ES227913A1956-04-041956-04-04A driving mechanism for retractable pencils. (Machine-translation by Google Translate, not legally binding)
ExpiredES227913A3
(en)