(Creata pagina con "<noinclude>{{ReferBox|Filling systems}}</noinclude>The ''"stantuffo tuffante"'' is the name given to the filling system invented and patented by OMAS in 1936 with the intr...")
The "stantuffo tuffante" is the name given to the filling system invented and patented by OMAS in 1936 with the introduction of the Lucens model. In reality, a loading system substantially identical to this and equally functional is found on the pens made by Dunn dating back fifteen years. For this reason, even if we cannot establish or not the originality of the invention of the OMAS it is not however correct to assign to it the complete paternity of this type of loading, even if today in Italy we refer to it with the name of "stantuffo tuffante" for the greater notoriety achieved by the Lucens compared to the pens of the Dunn and for the fact that it had not given a specific name to its loading.