Thread guide ring for a needle bar
Thread guide threading apparatus and sewing machine provided...
Thread guiding device for a rotary looper thread take-up
Thread handling system for a sewing machine
Thread processing machine having a thread changing device
Thread spool and cap
Thread spool holder for a plurality of needle thread spools
Thread supplying device of sewing machine
Thread supplying device of sewing machine
Threading arrangement for a sewing machine
Upper thread cassette and upper thread changing device