DIFF Subgroup
G01F 23/40 using bands or wires as transmission elements
Introduced: January 1985
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 floats > using bands or wires as transmission elements
IPC and CPC are identically structured here. All 3 subcodes exist in both systems.
IPC defines codes here since 1985.
Child Classifications
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- G01F 23/42 using mechanically actuated indicating means since 1985 +1 CPC IPC+CPC Available in IPC and CPC
- G01F 23/44 using electrically actuated indicating means since 1985 +2 CPC IPC+CPC Available in IPC and CPC