Producing one or more recordings of the values of a single variable

Introduced: September 1968

Full Title

Recording measured values > Producing one or more recordings of the values of a single variable

IPC and CPC are identically structured here. All 4 subcodes exist in both systems.

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G01D 9/04 with provision for multiple or alternative recording IPC+CPC Available in IPC and CPC
G01D 9/10 the recording element, e.g. stylus, being controlled in accordance with the variable, and the recording medium, e.g. paper roll, being controlled in accordance with time IPC+CPC Available in IPC and CPC
G01D 9/20 the recording element, e.g. stylus, being controlled in accordance with time and the recording medium, e.g. paper roll, being controlled in accordance with the variable IPC+CPC Available in IPC and CPC
G01D 9/26 either the recording element, e.g. stylus, or the recording medium, e.g. paper roll, being controlled in accordance with both time and the variable IPC+CPC Available in IPC and CPC