PSR / Pennsylvania Sewing Research Corporation manufactures a complete line of economically priced utility fusing machines, as well as machines designed for fusing belt loops, knit shirt plackets, furniture skirts, waistbands, shirtfronts, etc., PSR also manufactures affordable belt loop processors, rewinders as well as attachments and sewing aids for the sewn products industries. All PSR machines are manufactured in the United States and are warranteed against defects in workmanship for one year.