Signal arrangement in a sewing machine

Skipped stitch detection system

Solar powered indicating device for sewing machines

Stitch quality monitoring system for sewing machines

Stitching method and apparatus employing thread payout...

Thread break detector for a sewing machine

Thread breakage detection device for sewing machine

Thread consumption detecting apparatus for a sewing machine

Thread device for sewing machine

Thread feed device in a sewing machine

Thread measuring and feeding apparatus for a sewing machine

Thread monitor for the bottom thread in the bobbin of a sewing m

Thread monitoring device for the thread supply of a rotary hook

Thread tension control signal output device for sewing machine

Under thread detection device for sewing machine

Under thread detection for sewing machines with axially spring b