Multiple folding booklets

Claim 1

As an article of manufacture, a plurality of folding booklets forming a self-mailable unit consisting of a. an elongated web of printable material comprising a plurality of layers, b. said web being sub-divided along lines of perforations transverse of the web into a plurality of booklet panels each being of the same size, c. each layer of each panel being detachably connected to a layer of each adjacent booklet panel along the line of perforations, d. each booklet panel being folded at its center along a line transverse to the longitudinal axis of the web to define fields for printed matter in said panels adjacent to a centerfold line, e. the direction of folding of each panel along its centerfold line being in a direction opposite the direction of folding of each adjacent panel, f. each layer being permanently bound to eAch subadjacent layer along the centerfold line of each panel, so that upon detachment of said booklet panels from adjacent booklet panels a plurality of independent booklets is provided each having a number of pages which are permanently bound together along the centerfold line of the panels, g. the web being folded along said centerfold lines and said lines of perforations, the direction of folding of each of said panels along said lines of perforations being in a direction opposite the direction of folding of the next adjacent line of perforations, the order of folding of the web being first along said lines of perforations to bring said centerfold lines into alignment with each other and then along said centerfold lines, to bring said panels into a securely nested relationship.