IPC Subgroup
G10C 3/3 Couplers, e.g. for playing octaves
Introduced: September 1968
Last revised: January 2006
Full Title
Details or accessories > Couplers, e.g. for playing octaves
Classification Context
- Section:
- PHYSICS
- Class:
- MUSICAL INSTRUMENTS; ACOUSTICS
- Subclass:
- PIANOS, HARPSICHORDS, SPINETS OR SIMILAR STRINGED MUSICAL INSTRUMENTS WITH ONE OR MORE KEYBOARDS