ASW intercept localization sonar
Attenuator circuit ultrasonic testing
Attitude indicator comparator warning system
Attitude indicator having expanded scale
Audibility-control system for radio receiver
Audible auto turn signal
Audible command method for handing off messages between two...
Audible speed indicator
Audible vacuum detector
Audio tachometer system
Authentication between communicating parties in a...
Authentication information communication system and method,...
Authentication of a first transceiver unit with respect to a...
Authentication of source, plus, for goods and services...
Authentication of source, plus, for goods and services...
Authenticity determination system of responder,...
Authorization control system
Authorization verification system for vehicles
Authorizing payment subsequent to RF transactions
Auto alarm system