US Patent 3,389,583 (granted June 25, 1968, filed Aug. 13, 1965) to Daniel Duhl, assigned to Indian Head Mills, for an open-mesh fabric made on a stitch-through (knit-stitching) machine. Coarse filling yarns criss-cross back and forth across the full width and are bound by widely spaced chain-stitched longitudinal elements, giving a leno-like net suited to curtains and draperies. The text covers the claim, preferred nylon yarns, spacing ranges, and references to the Mauersberger machine patents. A certificate of correction on the last page amends the assignee details.