US Patent 2,691,286, granted 12 October 1954 to Gilbert N. Cooper of Elkins Park, Pa., for a warp-knitted mesh fabric. The fabric has knitted warp chains of paired principal loops and single auxiliary loops, locked by unknitted warp threads, producing twelve-sided meshes that look circular. It is made on a knitting machine, keeps its shape without stretching or sizing, has a perfect selvage and suits overlay decoration. It was intended for millinery and shoe mesh in nylon or other yarns, and it simulates lace-machine products. The scan includes the drawing sheet, specification, five claims and cited references.