73130994
Jun 20, 1977
May 22, 1979
AIRCRAFT INSTRUMENTS FOR SENSING AND INDICATING ACCELERATION, ANGLE OF AIRFLOW, POSITION AND VELOCITY; GYROSCOPES, ALTIMETERS, STALL WARNING DEVICES, AIR DATA COMPUTERS, FLIGHT RECORDERS, MAINTENANCE DATA RECORDERS, CRASH RECORDERS, FLIGHT CONTROLLERS, CONTROLLERS FOR RELEASE OR DISCHARGE OF WEAPONS FROM AIRCRAFT AND GUIDED MISSILES, AND RADIO FREQUENCY DATA TRANSMITTERS; DIGITAL POSITION ENCODERS, ELECTRICAL TIMING MOTORS, MOTORS FOR DRIVING INSTRUMENTS, PRECISION POTENTIOMETERS, ELECTRONIC SYNCHRO-TO-DIGITAL AND DIGITAL-TO-SYNCHRO CONVERTERS, OPTICALLY CONTROLLED ELEMENT POSITIONERS, OPTICAL PRECISION GAGES, AND SOLID STATE SEMICONDUCTIVE TRANSDUCERS; MICROPHONES, CITIZENS BAND RADIO ANTENNAS; OPTICAL PROJECTORS FOR VIDEO DISPLAYS, ELECTROMECHANICAL INFORMATION DISPLAYS; AND INTRUSION AND FIRE DETECTORS, ALARM TRANSMITTERS AND ELECTRONIC SECURITY CENTERS
Electrical and Scientific Apparatus