US PATENT SUBCLASS 84 / 451
.~.~ Special or enharmonic scales

Current as of: June, 1999
Click HD for Main Headings
Click for All Classes

Internet Version by PATENTEC © 1999      Terms of Use


84 /   HD   MUSIC

1  DF  INSTRUMENTS {9}
*  DD  .~ General features {7}
451.~.~ Special or enharmonic scales

DEFINITION

Classification: 84/451

Pianos or organs furnishing more than twelve notes to the octave or tuned to give a scale different from the equally-tempered scale of the piano; special keyboards and connections therefrom; quarter-tone instruments; enharmonic instruments.