IPC Subgroup
G10C 3/163 the action being mounted in a plane below the keyboard
Introduced: January 2019
Full Title
Details or accessories > Actions > specially adapted for upright pianos > the action being mounted in a plane below the keyboard
Classification Context
- Section:
- PHYSICS
- Class:
- MUSICAL INSTRUMENTS; ACOUSTICS
- Subclass:
- PIANOS, HARPSICHORDS, SPINETS OR SIMILAR STRINGED MUSICAL INSTRUMENTS WITH ONE OR MORE KEYBOARDS