CPC Subgroup
G01R 13/08 Electromechanical recording systems using a mechanical direct-writing method
Full Title
Arrangements for displaying electric variables or waveforms > for producing permanent records > Electromechanical recording systems using a mechanical direct-writing method
1 direct subcode
Child Classifications
Navigate with arrow keys, Enter to open
- G01R 13/10 with intermittent recording by representing the variable by the length of a stroke or by the position of a dot