35 Retail services, namely retail store services and retail services by direct solicitation by sales agents, in the field of fuel cells and power cells, energy generating devices, systems, components, cartridges, refueling devices, interconnects, systems, subsystems and energy sources, namely fuel cells, power cells, batteries and energy storage devices for portable electronic devices, fuel refilling devices, smart interconnect devices for connecting fuel supplies and fuel cells; import and export services in the field of fuel cells, power cells and energy related products and services