Testing other than medical testing, scientific, nautical, [ optical, ] weighing, measuring, [ signaling, checking ] and supervising, machines, and instruments, namely, engine [ and chassis dynamometer ] and transmission test equipment comprised of a dynamometer, [ engine mounting stands, drive shafts, guards, fuel, oil, water and air cooling modules and cooling fans all sold as a unit and structural replacement parts thereof,]fuel consumption measurement systems, namely, electrical and electronic measuring instruments for use in measuring fuel consumption for automotive, aerospace, industrial and marine use; exhaust gas measurement systems, namely, electrical and electronic measuring instruments for use in measuring engine exhaust gas emissions, for automotive, aerospace, industrial and marine use; electrical and electronic machines apparatus and instruments for testing, namely, electrical controller, electrical controlling devices, electronic controls systems for machines, for use with all the aforesaid machines, apparatus or instruments; electrical and electronic control apparatus and instruments, all for use with all the aforesaid machines, apparatus or instruments, namely, electrical controllers, electrical controlling devices, electronic controls systems for machines; [ apparatus for recording, transmission and reproduction of sound or images; ][ blank magnetic data carriers,] [ prerecorded magnetic data carriers featuring digital control and data acquisition information for industrial turbines, industrial engines, marine engines, vehicle engines and transmission ][ and chassis dynamometers ]; [ recording discs, namely, compact discs featuring digital control and data acquisition information for industrial turbines, industrial engines, marine engines, vehicle engines, and transmission ][ and chassis dynamometers ]; computer hardware and firmware for digital control and data acquisition information for industrial turbines, industrial engines, marine engines, vehicle engines, and transmission [ and chassis dynamometers ]; data processing apparatus, computer software for digital control and data acquisition information for industrial turbines, industrial engines, marine engines, vehicle engines, and transmission [ and chassis dynamometers ]; computer programs for digital control and data acquisition information for industrial turbines, industrial engines, marine engines, vehicle engines, and transmission [ and chassis dynamometers ]; computer memories

Installation, maintenance and repair of testing, scientific, nautical, optical, weighing, measuring, signaling and checking machines, apparatus and instruments, electrical and electronic machines, apparatus and instruments for testing, namely, engine test equipment, chassis dynamometer test equipment and transmission test equipment; installation, maintenance and repair of dynamometers; installation, maintenance and repair of electrical and electronic control apparatus and instruments, all for use with all the aforesaid machines, apparatus or instruments, namely, dynamometer control systems, fuel measurement equipment, gas emissions equipment, air flow measurement equipment; [ installation, maintenance and repair of magnetic data carriers and recording discs; ]installation, maintenance and repair of apparatus for recording, transmitting, reproducing or processing signals, namely, high speed data acquisition and very high speed data acquisition for combustion analysis; installation, maintenance and repair of computer hardware and data processors

Installation, maintenance and repair of computer firmware, computer software and computer programs