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Individual
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Individual
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Priority to ES0269172ApriorityCriticalpatent/ES269172A1/en
Publication of ES269172A1publicationCriticalpatent/ES269172A1/en
Improvements in the manufacture of fountain pens, according to which the pens are provided with a loading equipment, integrated by a rod; a general tank with a rigid sector and a flexible part as a bellows, deformable by the pressure exerted on it by said push rod and a tubular element, adapted on the rigid sector of said rigid tank, whose tubular element retains the point of writing and the piece that sustains it and supplies ink. (Machine-translation by Google Translate, not legally binding)
ES0269172A1961-07-151961-07-15Improvements in the manufacture of stylographic feathers (Machine-translation by Google Translate, not legally binding)
ExpiredES269172A1
(en)