System of cards, cardboard, cardboard or other appropriate material, which, by groups of two or more, constitute sheets destined to be sewn or glued to the body of medical or professional journals, drilled along the entire length of its interior margin, and horizontally in its middle part. (Machine-translation by Google Translate, not legally binding)

摘要

A new system of cards, made of cardboard, cardboard or other appropriate material, which by groups of two or more, are leaves to be sewn or glued to the body of medical or professional journals, placed anywhere in your page. (Machine-translation by Google Translate, not legally binding)