Diced substrate S.A.W. device for bulk wave attenuation

Directional low-frequency ring hydrophone

DT cut, contour mode piezoelectric crystal

Easily constructible instructional electric motor

Elastic surface wave device

Elastic surface wave transducer

Elastic volume wave convolution device

Electric power generator

Electrically actuated piezoelectric high voltage impact mechanis

Electroacoustic conversion device having a diaphragm comprising

Electroacoustic transducer of the flexural vibrating diaphragm t

Electroacoustic transducers of the bilaminar flexural vibrating

Electroacoustical transducer comprising piezoelectric element

Electrostatic generators

Fluidic to electric transducer and method

Gas ignition devices

Hand tool for creating and applying ultrasonic vibration

Hermetically sealed mount for a piezoelectric tuning fork

High power remote control ultrasonic transmitter

Housing and support for piezo-electric resonator