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Creata pagina con 'Also in the second half of the '30s Columbus started producing models with transparent celluloid that allow to see the ink level, according to the new trend inaugurated by...'
Also in the second half of the '30s [[Columbus]] started producing models with transparent celluloid that allow to see the ink level, according to the new trend inaugurated by [[Vacumatic]]. From this this period was the birth of the [[Columbus 112]], a [[plunger filler]] model. In 1938 the company obtained a patent ({{Cite patent|IT|288327}}) for a screw piston, which had as a consequence the creation of the [[Columbus 10x|100]] line, equipped with a [[piston filler]] loading system.