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Picture of the first known fountain pen patent. Excerpt from original patent ({{Cite patent|FR|Poenaru}}). Retouched by the author for a better sharpness. File come from INPI (''Institut National de la Propriété Industrielle'') and is part of the extremely interesting archive of 19-th century French patents archive, that is freely available at the address: http://bases-brevets19e.inpi.fr/.
Picture of the first known fountain pen patent. Excerpt from original patent ({{Cite patent|FR|Poenaru}}). Retouched by the author for a better sharpness. File come from INPI (''Institut National de la Propriété Industrielle'') and is part of the extremely interesting archive of 19-th century French patents archive, that is freely available at the address: http://bases-brevets19e.inpi.fr/.
==Licenza==
==Licenza==
Permesso di riutilizzo fornito dall'INPI (''Institut National de la Propriété Industrielle''), con la condizione di citazione delle fonti e l'indicazione del sito di provenienza.
[[Category:Patent Images]]
[[Category:Patent Images]]
[[Category:Schemi Tecnici]]
[[Category:Schemi Tecnici]]