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/. |