Double and triple rotated quartz plates for surface waves

Double bimorph electromechanical element

Double brush assembly

Double casing for electric rotating machine stator

Double coil actuator

Double coil constant force extension spring bracket

Double diaphragm compound shaft

Double gap electric generating machines

Double insulated commutator

Double insulated motor including a magnet retainer

Double layered stator peripheral end windings

Double mode surface wave resonators

Double or multiple auger suction unit for hoods, ovens and simil

Double resonating beam force transducer with reduced longitudina

Double rotor type motor

Double saggital pull stroke amplifier

Double saggital push stroke amplifier

Double saggital stroke amplifier

Double serrated piezoelectric transducer

Double thickness mode energy trapped piezoelectric resonating de