block for writing with rifling on the fronts of sheets ntrapposti diversified co

摘要

a block of writing includes a plurality of sheets (20) connected to a support spiralato (12), in which the opposing sides are varied as rifling.in a preferred form of execution, the upper face (22) of the sheets (20) is provided with rifling, horizontal and vertical width and height that materializes squares identicalwhile the back (24) of the sheets were presents paintings designed horizontally in tenths of thumb and vertically in sixths of thumb.advantageously, the flyleaf inside the block of writing are shown tables or tables for the counting or the conversion systems for readingwhile along the upper end of the sheets (20) are obtained prints (26) for the description of references on the subject highlighted on the papers themselves.