Perfected classification and file files. (Machine-translation by Google Translate, not legally binding)

摘要

Improved filing and indexing sheets, essentially characterized in that the edge close to the alignment of holes for the introduction of the centering pins in the base plate is affected by a plurality of preferably semicircular notches which, arranged in front of the holes, constitute a second alignment for the lateral support of the leaf in the pivots of the motherboard. (Machine-translation by Google Translate, not legally binding)