7 Aftermarket automobile engine exhaust systems comprised of pipes, collectors, mufflers, particulate traps; Air-intake tubes and filters for after-market installation of automotive engines; Air filters for automobile engines; Assembly lines, namely, a series of machines for assembling automobiles in successive stages; Automotive parts, namely, turbocharger systems; Catalytic converter units for vehicle exhausts; Dust exhausting installations for cleaning purposes; Electric generators; Electric jacks; Hand-held vacuum cleaners; Hydraulically actuated tools, namely, pliers, hammers; Paint spray guns; Pneumatic pumps; Valves for pumps; Vehicle engine parts, namely, oil tank plugs and caps