Digital manuals or stitch patterns for vintage Koyo sewing machine models (like the 1230 or 1290).
Technical data for Koyo Bearings (now JTEKT), such as roller thrust bearings or automotive components. koyo1.2.zip
Software or firmware for Koyo/DirectLogic controllers or GC series touch screens, often used in manufacturing. Digital manuals or stitch patterns for vintage Koyo