26 INSTRUMENT LANDING APPROACH SYSTEMS CAPABLE OF OPERATING THROUGH TOUCHDOWN FOR AIRCRAFT, PROVIDING AUTOMATIC OPERATION OF FLIGHT AND THROTTLE CONTROLS OF AIRCRAFT; AUTOMATIC FLIGHT CONTROL SYSTEMS; THROTTLE CONTROL APPARATUS; CONTROL SYSTEMS AND APPARATUS FOR AIRCRAFT WHICH ARE CONTROLLED BY RADIO SIGNALS; ELECTRIC, ROTARY AND LINEAR ACTUATOR AND POWER UNITS; FLIGHT DIRECTOR INDICATORS; REMOTELY CONTROLLED FLIGHT CONTROL APPARATUS OF THE TYPE IN WHICH TELEMETERING DEVICES ARE USED WITH OR WITHOUT MECHANICAL DEVICES FOR POSITIONING MOVABLE ELEMENTS FROM A DISTANCE; REMOTE INDICATING ARTIFICIAL HORIZON INSTRUMENTS FOR AIRCRAFT; REMOTE SLAVED DIRECTION INDICATING INSTRUMENTS FOR AIRCRAFT; LINEAR ACTUATORS IN THE FORM OF A ROTARY DRIVE MECHANISM AND A TRANSMISSION FOR CONVERTING THE ROTARY MOTION TO LINEAR MOTION; SERVO ACTUATORS WHICH EMPLOY A POWER SOURCE AND A CLUTCH OR CLUTCHES FOR SELECTIVELY COUPLING A POWER SOURCE TO ONE OR MORE DRIVEN MEMBERS
Trademark: 72221979
