An electronic apparatus having a musical alarm function and a display, which produced a musical sound when an alarm time is reached while also concurrently performing score display of the musical notes of the produced musical sound on a printed five-line staff. The display produces a display of another...http://www.google.fr/patents/US4388000?utm_source=gb-gplus-shareBrevet US4388000 - Electronic apparatus having a musical alarm function and a display
Electronic apparatus having a musical alarm function and a display
