Compressors comprising primarily intregal electric motors with compressors and frequency converters as well as accompanying piping, valves, heat exchangers and control instruments, namely, gas compressors for transporting large volumes of gas through pipelines

pipeline compressor systems comprising motor compressors, variable frequency drives, electronic controls, unit piping and valves, unit vessels, heat exchangers, and other associated electrical equipment, namely, high voltage switch gear, input and output transformers, instrumentation transmitters, and the buildings housing the equipment sold as a unit, for transporting large volumes of gas through pipelines