gear motors and gear engines being parts of fertilizer mixers used in the fertilizing and water dosing of plants; gear motors being parts of plant irrigation systems; gear motors being parts of ventilation and solar radiation screening systems for temperature, heating, cooling, and light regulation and control; machine couplings and transmission components, namely, couplings and components for mechanical ventilation systems, namely, racks and pinions, potentiometers, base plates, and gear-box covers, all sold as a unit, and machine couplings and transmission components, namely, couplings and components for plant irrigation distribution systems, namely, mechanical irrigation valves and irrigation sensors, all sold as a unit, said machine couplings and transmision components also for use with plant fertilizer mixers and mechanically operated solar radiation and temperature screening systems; parts and accessories for the aforementioned goods, namely, pumps, relays, brackets, and racks and pinions for ventilation louvers, all sold as a unit; all of the aforementioned goods for use in connection with the control of plant growth or with indoor climate and water control

electric and electronic apparatus and instruments, namely, controllers and computers for use in fertilizer mixers, in temperature, air conditioning, and humidity regulation systems to control indoor climate, and in pH- and EC-meters; meteorological stations, namely, weather stations developed for measuring outside temperature, humidity, rain, wind direction, wind speed, photosynthetic active radiation and solar radiation; alarms, namely, watch and warning alarms against lack of water, carbon dioxide, light supply, and malfunction; air analyzing apparatus, namely, sensors for use indoor and outside to control humidity, temperature, wind direction, wind speed, rain, photosynthetic active radiation, solar radiation, fertigation concentration, and acidity levels; thermostats for air conditioning; automatic valves which react by changes in temperature, and by physical changes such as changes in humidity and concentration of carbon dioxide; data processing equipment, namely, control computers and software for the control of irrigation and fertigation of plants and indoor climate; automatic heat valves for use in cooling, ventilation, irrigation, water supply, and fertilizing applications; automatic drain valves for irrigation purposes; electric timers for regulating the rate of applying fertilizers; parts and accessories as parts of the mentioned goods, namely, relay boxes, signal transmitters, amplifiers, voltage transformers, and assemblies; all of the aforementioned goods for use in control of plant growth, regulation of indoor climate, and watering control

indoor and outdoor irrigation and fertilization control systems, climate-measuring systems, and climate-control systems, the aforesaid systems consisting of heat valves, heat controllers, electric thermostats for regulating cooling, ventilation, and irrigation cycles, electric controllers for regulating the level of the water supply, start trays and drain trays, relays, amplifiers, signal transmitters, and voltage transformers, all sold as a unit; rack and pinion assemblies used in ventilation louvers; drain valves and drip capillaries for use in plant irrigation; parts and accessories for the aforementioned goods, namely, sprinklers and nozzles for plant irrigation, and drain valves for plant irrigation; all for use in connection with the control of plant growth or with indoor climate and watering control