DIFF Subgroup
G01C 19/44 for indicating the vertical
Introduced: September 1968
Full Title
Gyroscopes; Turn-sensitive devices using vibrating masses; Turn-sensitive devices without moving masses; Measuring angular rate using gyroscopic effects > Rotary gyroscopes > for indicating the vertical
IPC and CPC are identically structured here. All 1 subcodes exist in both systems.
Child Classifications
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- G01C 19/46 Erection devices for restoring rotor axis to a desired position IPC+CPC Available in IPC and CPC