Amplified tree structure technology for fiber optic sensor...

Anti-seismic device

Apparatus and method for detecting swimmers

Apparatus and method for minimizing reception nulls in...

Apparatus and method for processing optical signals from two...

Apparatus for degassing liquids

Apparatus for discriminating sound sources in a water environmen

Apparatus for distributing lubricant to air guns in a single air

Apparatus for fiber optic seismic exploration system

Apparatus for generating ultrasonic fields

Apparatus for microchip laser geo-sensors

Apparatus for preventing turning-in and transmitter for vehicle

Apparatus for securing a ferroelectric stack to a weighted proje

Apparatus for transmitting two frequency signals with an acousti

Aquatic transducer system

Aquatic transducer system

Arrangement in hydrophone

Arrangement of micromechanical ultrasound transducers

Assembly for use in seismic surveys of the sea bed

Asymmetrical lateral-force seismic source transducer