Electroluminescent fret grid for stringed instruments

Electromagnetic actuator used for keyboard musical instrument

Electromagnetic devices for actuating piano keys

Electromagnetic devices for actuating piano keys

Electromagnetic humbucker pick-up for stringed musical...

Electromagnetic musical pickup having U-shaped ferromagnetic cor

Electromagnetic musical pickup using main and auxiliary permanen

Electromagnetic musical pickup with wraparound permanent magnet

Electromagnetic musical pickups with central permanent magnets

Electromagnetic pickup and method for tine-type electric piano,

Electromagnetic pickup device

Electromagnetic pickup device

Electromagnetic pickup device for electrical string musical inst

Electromagnetic pickup for a plural-string musical instrument in

Electromagnetic pickup for a stringed musical instrument having

Electromagnetic pickup for a stringed musical instrument having

Electromagnetic pickup for an electric stringed instrument

Electromagnetic pickup for stringed musical instrument, and...

Electromagnetic pickup for stringed musical instruments

Electromagnetic pickup for stringed musical instruments