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PCE
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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

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  • G01R 13/06 Modifications for recording transient disturbances, e.g. by starting or accelerating a recording medium
  • G01R 13/12 Chemical recording, e.g. clydonographs (G01R13/14 takes precedence)
  • G01R 13/14 Recording on a light-sensitive material