IPC Subgroup
G04B 19/28 Adjustable guide marks or pointers for indicating determined points of time
Introduced: September 1968
Last revised: January 2006
Full Title
Indicating the time by visual means > Adjustable guide marks or pointers for indicating determined points of time
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