1429868-A is referenced by 27 patents.
1429868 Bookbinding H MOGUMO 18 May 1973 23820/73 Heading B6A A book is bound by applying a ribbon of adhesive 14 lengthwise to the central portion of an elongate sheet 1, Fig. 1; folding the sheet at right angles to the ribbon as many times as desired (Fig. 3) applying pressure to the central portion of the folded sheet so as to form a series of spaced aligned indentations at which the overlapping portions of the sheet are brought into intimate contact with one another (Fig. 4) trimming the marginal edges 7-10, Fig. 5; and glueing the back edge 4 of the fold line to a cover sheet.