IPC Subgroup
G04F 5/04 using oscillators with electromechanical resonators
Introduced: July 1974
Last revised: January 2006
Full Title
Apparatus for producing preselected time intervals for use as timing standards > using oscillators with electromechanical resonators
Classification Context
- Section:
- PHYSICS
- Class:
- HOROLOGY
- Subclass:
- TIME-INTERVAL MEASURING
2 direct subcodes
Child Classifications
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