| patents. | machines and machine tools, motors and engines except for land vehicles, machine coupling and transmission components except for land vehicles, agricultural implements other than hand-operated, incubators for eggs | máquinas y máquinas herramientas, motores excepto motores para vehículos terrestres, acoplamientos y órganos de transmisión excepto para vehículos terrestres, instrumentos agrícolas no manuales, incubadoras de |