DIFF Subgroup
G08B 29/20 Calibration, including self-calibrating arrangements
Introduced: January 1990
Full Title
Full titles differ between systems:
IPC:
Checking or monitoring of signalling or alarm systems; Prevention or correction of operating errors, e.g. preventing unauthorised operation > Prevention or correction of operating errors > Calibration, including self-calibrating arrangements
CPC:
Checking or monitoring of signalling or alarm systems; Prevention or correction of operating errors, e.g. preventing unauthorised operation > Prevention or correction of operating errors (G08B29/02, G08B29/12 take precedence) > Calibration, including self-calibrating arrangements
IPC and CPC are identically structured here. All 2 subcodes exist in both systems.
IPC defines codes here since 1990.
Child Classifications
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- G08B 29/22 Provisions facilitating manual calibration, e.g. input or output provisions for testing; Holding of intermittent values to permit measurement since 1990 IPC+CPC Available in IPC and CPC
- G08B 29/24 Self-calibration, e.g. compensating for environmental drift or ageing of components since 1990 IPC+CPC Available in IPC and CPC