[ INDUSTRIAL SEWING MACHINE MOTORS; ELECTRONICALLY CONTROLLED NEEDLE POSITIONING DEVICES FOR INDUSTRIAL SEWING MACHINES; COLLAR AND CUFF TURNING AND SHAPING MACHINES; CLUTCHES; AUXILIARY APPARATUS AND ATTACHMENTS-NAMELY, FEED MECHANISMS, FOLDING MECHANISMS, GUIDES AND CONVEYORS FOR STITCHING, TRIMMING, TURNING AND SHAPING VARIOUS MATERIALS; SEWING AND UTILITY STANDS AND TABLES FOR SEWING AND STITCHING APPARATUS; INTERNAL COMBUSTION PISTON ENGINES FOR AIRCRAFT AND PARTS FOR SUCH ENGINES; THREAD CUTTING MACHINES, AUTOMATIC NIPPLE MACHINES, COUPLING BORING MACHINES, PRECISION TAPPING MACHINES, THREAD ROLLING MACHINES, GEAR FINISHING MACHINES, CHASER GRINDING MACHINES AND ] SPECIAL MACHINES [ ; PRESSES, AUTOMATIC ASSEMBLY MACHINES, AND WELDING MACHINES ]