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The Fountain Pen Patent Archive

The instruments that put ink under pressure

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Overfeed nib cap

Patent drawing showing four views of a fountain pen: a full side view with crosshatched grip, two cutaway longitudinal sections revealing an internal ink reservoir, sliding extension tube, and piston-rod filling mechanism, and a small end-view cross-section.

FOUNTAIN-PENHermann Madeheim · February 19, 1884

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