rail vehicle component parts, not being engine parts, namely, a friction modifier system comprised of lubricant containers, lubricant conveyers, and an on-board control computer used to calculate the correct amount of friction modifier to dispense to maximize the efficiency of train operation

Rail vehicle component parts, not being engine parts, namely, a friction modifier system comprised of lubricant containers, lubricant conveyors, and an on-board control computer used to calculate the correct amount of friction modifier to dispense to maximize the efficiency of train operation