US 021 023 026 036 038. G and S: Parts and Supplies for Air Conditioning and Heating Equipment, namely, capacitors, circuit boards, circuit breakers, electric controls for heating and energy management, electrical fuses, electrical components in the nature of contactors, electrical relays and transformers, thermocouples, electrical switches, electrodes, temperature switches, pressure switches for monitoring, controlling and switching hydraulic or pneumatic systems, thermostats and electronic ...