DIFF Main Group
G01D 9/00 Recording measured values
Introduced: September 1968
Of 6 combined children, 5 exist in both systems.
1 codes are CPC-only extensions.
2 shared codes have differing titles between IPC and CPC.
Child Classifications
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- G01D 9/02 Producing one or more recordings of the values of a single variable IPC+CPC Available in IPC and CPC
- G01D 9/28 Producing one or more recordings, each recording being of the values of two or more different variables (G01D9/38, G01D9/40 take precedence) +1 CPC IPC+CPC Available in IPC and CPC
- G01D 9/38 Producing one or more recordings, each recording being produced by controlling the recording element, e.g. stylus, in accordance with one variable and controlling the recording medium, e.g. paper roll, in accordance with another variable IPC+CPC Available in IPC and CPC
- G01D 9/40 Producing one or more recordings, each recording being produced by controlling either the recording element, e.g. stylus or the recording medium, e.g. paper roll, in accordance with two or more variables IPC+CPC Available in IPC and CPC
- G01D 9/42 Recording indications of measuring instruments by photographic means, e.g. of counters IPC+CPC Available in IPC and CPC