| 摘要 |
A panel has at least one viewing window cut made in a front sheet to view illustrations and/or texts or cover them. It has a support sheet glued behind the front sheet; a booklet is fixed on the support sheet, in correspondence to the window, and being smaller than the window so that it can be leafed through via that window, and a sliding shutter is placed between the support sheet and the front sheet, to close the window, in its covering position, and hide the booklet, with the sliding shutter being held in parallel guides situated between the front sheet and the support sheet very close to two opposite sides of the window. Application in particular to making books formed by assembly of several panels. |
