G09B15/007 - CPC Classification Index

ClassID:

195311 ⎘

G09B15/007 - CPC Classification

Classification description:

Teaching music; Boards or like means for providing an indication of chords; Non-electrically operated systems using disc-shaped boards

Sub-classes:

G09B15/008 » {with indication of the keys or strings to be played on instruments} 5

Recent Application in this class:

20240395164

Music Chord Map

20220108672

Music learning aid

15867962

Piano cards music theory teaching method and apparatus