9 Optical apparatus and instruments, namely, cameras for visual simultaneous localization and mapping [VSLAM], and infrared cameras for visual simultaneous localization and mapping [VSLAM]; light detection and ranging apparatus; radar machines and apparatus; ultrasonic sensors; lasers for measuring; antennas [aerials]; global positioning system [GPS] receivers; rechargeable batteries; aeronautical radio communication machines and apparatus; precision measuring machines and instruments for aircraft or spacecraft; electronic data processing and computer machines, apparatus and their parts for aircraft, spacecraft, or unmanned aerial vehicles; navigation apparatus for vehicles [on-board computers]; satellite-aided navigation systems; downloadable software for navigation systems; recorded software for navigation systems; inertial navigation systems; measuring or testing machines and instruments, namely, magnetic compasses, ultrasonic sensors, and distance measuring apparatus; gyroscopes; acceleration sensors