Acoustic lens system

Acoustic log

Acoustic log

Acoustic logging using ultrasonic frequencies

Acoustic method and apparatus for determining effectiveness of m

Acoustic method for detecting leaks from submerged pipelines

Acoustic presence detection method and apparatus

Acoustic telemetry system for oil wells utilizing self generated

Acoustic transducer with acoustic isolating mounting base

Acoustic transponder navigation system

Acoustic velocity logging system

Acoustic wave device with modulation functionality

Acoustic wave transducer with automatic compensation of the stat

Acoustic wave transmitter-receiver

Acoustic well logging with threshold adjustment

Acoustical imaging system

Acoustical pick-up for reception of signals from a drill pipe

Acoustical switch

Acoustical tire pressure valve

Acoustical underwater communication system for command control a