| 摘要 |
A folder which can be converted into an adjustable book-rest, characterized in that it is constituted by an articulated assembly which comprises a prism-like box which has an overturning cover (B,E,H,M) and a prop (C,F,I,O) which is connected between said cover and the bottom (A,D,G,L) of the box, at least one of said cover and of said bottom being provided with raised portions, to give a desired inclination to said cover with respect to the bottom, said cover supporting a document and retaining it at an edge thereof with a support. |
