Servo-motors; Direct current motors, namely, stepper motors; Kits for building direct current motors in the nature of stepper motors consisting primarily of electronic motor components, not for land vehicles, namely, battery holders, motor mounting brackets, ball bearings, shafts, stator, rotors, and magnets, and also including electronic circuit cards, electronic cables, ultrasonic sensors, microprocessors, and solar sells

Servo-motors; Direct current motors, namely, stepper motors; Kits for building direct current motors in the nature of stepper motors consisting primarily of electronic motor components, not for land vehicles, namely, battery holders, motor mounting brackets, ball bearings, shafts, stator, rotors, and magnets, and also including electronic circuit cards, electronic cables, ultrasonic sensors, microprocessors, and solar sells