Universal piano action striking vertical and horizontal...
Universal pulsato unit
Universal semi-automatic hand-portable page-changer
Universal support apparatus for heating and supporting of a musi
Universal tuner mount with spring-loaded link
Universal, multi-position, tuning mechanism and bridge for...
Upper cymbal fastening assembly for a hi-hat cymbal
Upper pivot support for a guitar
Upright harpsichord action
Upright keyboard instrument
Upright keyboard musical instrument
Upright piano
Upright piano
Upright piano action
Upright piano and action unit incorporated therein
Upright piano equipped with coupling units for horizontally supp
Upright piano for constant key-touch regardless of manipulation
Upright piano with key action mechanism responsive to repetition
Use of constant force spring in keyboard assembly
User controls for synthetic drum sound generator that...