DIFF Subgroup
G01D 9/12 recording occurring continuously
Introduced: September 1968
Full Title
Recording measured values > Producing one or more recordings of the values of a single variable > 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 > recording occurring continuously
IPC and CPC are identically structured here. All 1 subcodes exist in both systems.
Child Classifications
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- G01D 9/14 with provision for altering speed of recording medium in accordance with the magnitude of the variable to be recorded IPC+CPC Available in IPC and CPC