Decalco accounting board for inclined visibility cards (Machine-translation by Google Translate, not legally binding)

摘要

A dashboard accounting system for tilted visibility cards, characterized by a paper and carbon paper reel disposed next to one of its sides and by means of means for holding and cutting paper and carbon paper, as well as for retention on these, of a tilted visibility sheet and bevelled upper vertices. (Machine-translation by Google Translate, not legally binding)