Sensors for determining position; gyroscopes; measuring or testing machines and instruments; precision measuring machines and instruments for aircrafts and spacecrafts; measuring or testing machines and instruments for geological survey; measuring or testing machines and instruments for ground survey; measuring or testing machines and instruments for oil and gas exploration; measuring or testing machines and instruments for well logging.

Repair or maintenance of measuring and testing machines and instruments; repair or maintenance of sensors for determining position.

Measuring or testing machines and instruments; precision measuring machines and instruments; measuring or testing machines and instruments, namely, attitude and heading reference systems (AHRS) equipped with sensors, namely, solid-state or microelectromechanical systems (MEMS) gyroscopes, accelerometers and magnetometers to detect azimuth and attitude angles; gyrocompasses.