IPC Subgroup
G04F 10/06 by measuring phase
Introduced: July 1974
Last revised: January 2006
Full Title
Apparatus for measuring unknown time intervals by electric means > by measuring phase
Classification Context
- Section:
- PHYSICS
- Class:
- HOROLOGY
- Subclass:
- TIME-INTERVAL MEASURING
Related Keywords
measuring time by measuring PHASE(S) shift