How to sign: any mechanical or electrical device that transmits or modifies energy to perform or assist in the performance of human tasks
Categories: device
Within this category: assembly, bagger, calculator, calender, cash machine, computer, concrete mixer, corker, cotton gin, decoder, farm machine, franking machine, hop-picker, machinery, machine tool, milking machine, mill, motor, pavior, perpetual motion machine, pile driver, power shovel, power tool, press, press, printer, record player, riveting machine, self-feeder, simulator, slicer, slot machine, snow thrower, sorter, stamp, stapler, staple gun, textile machine, time machine, trimmer, workhorse, Zamboni