Book for reducing weight of satchel of pupil, has sheets that are perforated and not connected together at interior of support and are maintained together by rings, where book is presented under different forms in support

摘要

The book has sheets (1), a perforated cover (2), rings (3), a hole (5) and a fastener, where the book is presented under different forms in a support such as file, plastic envelope or folder. The sheets refer to a course of a day for a pupil. The sheets are perforated and are not connected together at the interior of the support. The sheets are maintained together by the rings.