Low thread supply monitor in a sewing machine
Lower thread amount display device of sewing machine
Material feeder of sewing machine
Method and apparatus for detecting improper stitches for a chain
Method and apparatus for detecting skipped stitches for a lockst
Monitoring looper thread feed monitoring device in a sewing mach
Needle thread stitch formation monitor
Optical switching arrangement for a sewing machine
Pocket hemmer having a thread break sensor
Process and device for recognizing a residual amount of the hook
Process and device for recognizing missed stitches during the op
Remaining bobbin-thread amount measuring apparatus for sewing ma
Remaining bobbin-thread amount measuring apparatus for sewing ma
Residual bobbin thread amount detecting apparatus for a sewing m
Sewing machine
Sewing machine full and low bobbin indicator
Sewing machine with a thread monitor for the thread of the bobbi
Sewing machine with bobbin thread monitor
Sewing machine with thread monitor for the bobbin thread
Sewing or embroidery machine