Under thread bobbin exchange device of an embroidery or sewing m

Under thread supply apparatus and method of supplying under thre

Underbed thread trimmer for horizontal axis hooks

Universal sewing foot

Upper cloth feed device for sewing machines

Upper cloth feed in a sewing machine

Upper fabric feed device for sewing machine, utilizing parallel

Upper fabric feed for a sewing machine

Upper feed adjusting mechanism for seing machine

Upper feed device for sewing machine

Upper feed dog automatic regulator for overlock machine

Upper feed dog device

Upper feed mechanism for sewing machine and sewing machine havin

Upper feed mechanism for sewing machines

Upper feeding device of a sewing machine

Upper layer feed mechanism in a sewing machine

Upper looper driving device of sewing machine

Upper looper provided with a hole and used for making an overedg

Upper roller feed mechanism for a sewing machine

Using a variable speed motor in a tape feed device for a sewing