Agricultural machinery and attachments therefor, namely, rotary mowers, box scrapers, and three-point attachments; Air filters for automobile engines; Clutches for machines; Cylinders for motors and engines; Drying machines and lines for web products, parts for the aforementioned machines, particularly recirculated air driers, inert gas driers, infrared driers, tempering machines and lines for web products, parts for the aforementioned lines, particularly calendars, low-pressure presses, high-pressure presses, double-belt presses, embossing and laminating machines for the production of hot and cold laminates, floor coverings, parts for the aforementioned machines and lines composed thereof; Electrical drills; Filters for cleaning cooling air, for engines; Injectors for engines; Mining bits; Oil filters for mechanical purposes; Oil pumps for land vehicles; Piston rings; Pistons for engines; Power-operated blowers; Saw benches being parts of machines; Sieves being machine parts; Valves being parts of machines; Vehicle parts, namely, carburetors; Water pumps for land vehicles