Compressors for machines in the nature of turbo superchargers; turbomachinery, namely, turbines, compressors and turbochargers used for air handling in combustion engines and fuel cells; turbogenerators, namely, an electric generator driven by a turbine; power generators, namely, emergency power generators, electric power generators for ships, mobile electric power generators, electric power generators for emergency use, portable electric power generators, electric power generators for indoor...