7 printing apparatus, instruments and machines, namely, machines for processing printing plates; printing plates; single sheet diffusion transfer plates; projection speed plates; offset printing apparatus, comprised of cylinders, drums, rollers and presses, all for use in printing; and parts for all the aforesaid goods, namely, cylinders, drums, rollers, pressers, plate processors, printing-down frames, stackers, conveyors, image setters, film setters, plate setters, baking ovens, traveling ovens, bending machines, wash/gum units and rinse/gum units