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Individual
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Individual
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Priority to ES0020493UpriorityCriticalpatent/ES20493U/en
Publication of ES20493UpublicationCriticalpatent/ES20493U/en
Special device for the loading of fountain pens that consists essentially in that the rubber tube or reservoir is applied a spring that is attached to it, covering this set a protective tube closed by its lower end that keeps coupled the rubber tube and the spring . (Machine-translation by Google Translate, not legally binding)
ES0020493U1949-07-141949-07-14Device for loading fountain pens (Machine-translation by Google Translate, not legally binding)
PendingES20493U
(en)