IPC Subgroup
G04B 17/28 for the effect of imbalance of the weights, e.g. tourbillon
Introduced: September 1968
Last revised: January 2006
Full Title
Mechanisms for stabilising frequency > Compensation of mechanisms for stabilizing frequency > for the effect of imbalance of the weights, e.g. tourbillon
Classification Context
- Section:
- PHYSICS
- Class:
- HOROLOGY
- Subclass:
- MECHANICALLY-DRIVEN CLOCKS OR WATCHES; MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL; TIME-PIECES USING THE POSITION OF THE SUN, MOON, OR STARS
Related Keywords
TOURBILLONS