7 Control systems, namely, systems for the control and regulation of performance variables of electric generators, internal combustion engines for machines, spark ignition engines for machines, diesel engines for machines, gas operated motors for machines, gasoline operated motors for machines; electric motors for machines, fuel injectors, clutches for machines, transmission gears for machines, axles for machines, wheels being parts for machines, transmissions, power trains, torque converters, torque couplers, electro-mechanical and hydraulic actuators, said performance variables comprising force, torque, pressure, strain, temperature, rpm rates, chemical concentrations, degree of wear, fluid levels, and timing; sensors for detecting and measuring force, torque, pressure strain, temperature, rpm rates, chemical concentrations, degree of wear, and fluid levels; timing sensors; scientific apparatus and instruments, namely, electronic circuits for transmitting data and signals related to the performance of the aforementioned goods, said electronic circuits also being referred to as bus systems, and replacement parts for all of the aforementioned goods; testing, measuring, and diagnostic equipment for performing tests, measurements and diagnoses, on the aforementioned goods with regard to force, torque, pressure, strain, temperature, rpm rates, chemical concentrations, degree of wear, fluid levels, and timing, comprised primarily of sensors for detecting and measuring input quantities, computers for analyzing the input quantities, and printers, indicators and data interfaces for communicating the results of the analyses