IPC Subgroup
G01R 13/04 for producing permanent records
Introduced: September 1968
Last revised: January 2006
Full Title
Arrangements for displaying electric variables or waveforms > for producing permanent records
Classification Context
- Section:
- PHYSICS
- Class:
- MEASURING; TESTING
- Subclass:
- MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
Related Keywords
RECORDING of electric variables
5 direct subcodes
Child Classifications
Navigate with arrow keys, Enter to open
- G01R 13/06 Modifications for recording transient disturbances, e.g. by starting or accelerating a recording medium
- G01R 13/08 Electromechanical recording system using a mechanical direct-writing method
- G01R 13/12 Chemical recording, e.g. clydonographs
- G01R 13/14 Recording on a light-sensitive material
- G01R 13/16 Recording on a magnetic medium