CPC Subgroup
G01R 13/04 for producing permanent records
Full Title
Arrangements for displaying electric variables or waveforms > for producing permanent records
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 systems using a mechanical direct-writing method
- G01R 13/12 Chemical recording, e.g. clydonographs (G01R13/14 takes precedence)
- G01R 13/14 Recording on a light-sensitive material
- G01R 13/16 Recording on a magnetic medium