7 Agricultural implements, namely, incorporators; Agricultural machines, namely, cultipackers; Air filters for automobile engines; Bicycle assembling machines; Blowing machines for the compression, exhaustion and transport of gases; Electric hand-held drills; Engine exhaust systems comprised of pipes, collector and muffler; Engine mufflers; Exhausts for motors and engines; Hand-held battery actuated hydraulic crimp tool; Ignition devices for motors of land vehicles; Industrial surface treatment equipment, namely, plasma treatment systems comprised of a high frequency, high voltage generator, treating heads and nozzles and structural parts therefor