FOLDER FOR DOCUMENTS WITH, AT LEAST, TWO VALVES Russian patent published in 2009 - IPC B42F7/04 

FIELD: personal utensils.

SUBSTANCE: folder for classification with, at least, two valves for documents contains one cover formed by the front sheet and the back sheet joined together with case work. One of the sheets has a valve arranged along, at least, one of its lower and upper edges and another valve arranged along its lateral edge. Valves are bent inside the sheet for keeping papers inside the folder. Whereat documents are formed by the pages of notebook joined with the case work of two sheets so that they do not get lost, securing possibility of introduction of pages by placing some pages consecutively over the other, on the sheet and under the valves, bent onto this sheet for classification and keeping documents in the set order.

EFFECT: proposed folder ensures safe keeping of documents protecting them from damage, along with their classification.

6 cl, 3 dwg