7 Mechanical drive and actuating machines used for driving, transporting, and positioning of objects for industrial use; parts for the aforesaid machines, namely, mechanical linear drives, threaded spindles, ball screw drives, trapezoidal drives, bevel gear drives, roller screws, tooth belt drives, electro-mechanical actuators, splined shafts, jointed shafts, nuts, linear tables and electric motors, sold as a part, or component, in combination with the aforementioned goods