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Creata pagina con "Instead, until this brochure was found, it was unknown the use of the FERT brand, found on pens imprinted as ''"F.E.R.T. Automatica..."
Instead, until [[:Categoria:Pagliero-Brochure-1936|this brochure]] was found, it was unknown the use of the [[FERT]] brand, found on pens imprinted as ''"F.E.R.T. Automatica Brevettata"'' with the reference to a patent ({{Cite patent|IT|330806}}) probably referring to the filling system, consisting of a thin U-shaped spring made from an elastic lamina, which can be side pressed to compress the rubber sac, after unscrewing a back blind cap much longer than the usual ones.