DIFF Subgroup
G01F 23/14 by measurement of pressure
Introduced: September 1968
Full Title
Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm > by measurement of pressure
IPC and CPC are identically structured here. All 2 subcodes exist in both systems.
1 shared codes have differing titles between IPC and CPC.
Child Classifications
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- G01F 23/16 Indicating, recording, or alarm devices being actuated by mechanical or fluid means, e.g. using gas, mercury, or a diaphragm as transmitting element, or by a column of liquid +4 CPC IPC+CPC Available in IPC and CPC
- G01F 23/18 Indicating, recording or alarm devices actuated electrically +1 CPC IPC+CPC Available in IPC and CPC