IPC Main Group
G04F 5/00 Apparatus for producing preselected time intervals for use as timing standards
Introduced: September 1968
Last revised: January 2006
Classification Context
- Section:
- PHYSICS
- Class:
- HOROLOGY
- Subclass:
- TIME-INTERVAL MEASURING
Scope Notes
Limiting references: Generating clock signals for electric digital computers
6 direct subcodes
Child Classifications
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