Translations:Stantuffo tuffante/5/en

Although it is one of the most advanced, effective and interesting filling systems, which has all the advantages of other breather tube systems and none of the problems related to the presence of flexible rubber membranes, the "stantuffo tuffante" unfortunately had a low diffusion, which sees it limited in its use to the Dunn pens and the aforementioned model Lucens of OMAS.

Related Patents

• Patent n° US-1351575, of 1920-08-31, requested on 1917-06-11, of Charles R. Keeran, Wahl Eversharp. Fountain-pen.

• Patent n° US-1359880, of 1920-11-23, requested on 1917-04-07, of Charles Dunn, Dunn. Self-filling fountain-pen.

• Patent n° GB-435482, of 1935-09-23, requested on 1934-03-23, of Edward Stephen Sears, Swan. Improvements in or relating to Fountain Pens.

• Patent n° IT-342950, of 1936-01-01, requested on , Officine Meccaniche Armando Simoni. Titolo ignoto.

• Patent n° FR-971980, of 1951-01-24, requested on 1940-11-30, Bayard. Perfectionnements apportés aux porte-plume à réservoir et stylographes à pointe.