Accentuator circuit for underwater acoustical devices
Acoustic log
Acoustic log
Acoustic method for detecting leaks from submerged pipelines
Acoustic transponder navigation system
Acoustic wave transmitter-receiver
Active wireless network for calculators
Apparatus and method for an A/B RF redundant sensing switch
Apparatus and method for seismic exploration
Apparatus for measuring water depth
Apparatus for the measurement of flowing media according to the
Bellows caging mechanism for airborne hydrophone
Bidirectional remote control system, bidirectional remote...
Building control system communication system timing...
Building environment monitor and control system
Cable for multiple sonar systems
Cable wiper assembly
Catacoustic navigating system
Clean room system
Color display system in ultrasonic sonar