Cronologia della pagina
4 set 2019
Creata pagina con "This allows you to repeat the pressure on the pump several times, to perform different filling actions and progressively fill the pen. In the absence of the breather tube in f..."
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Creata pagina con "The filling principle derives from the dropper principle, the pen tip is immersed in the ink and the pump is pressed, its expansion causes a depression that causes the ink to..."
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Creata pagina con "The system involves the direct use of the pen barrel as a reservoir, also allowing, when this was made of transparent material, the visualization of the ink level. Filling is..."
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Creata pagina con "<noinclude>{{ReferBox|Filling systems}}</noinclude>The ''bulb filler'' is probably the progenitor of all filling systems based on the presence of a breather tubes. Its origins..."
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Creata pagina con "Bulb filler"
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