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DIFF Subgroup
G01C 19/40

for control by signals from a master compass, i.e. repeater compasses

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 control by signals from a master compass, i.e. repeater compasses

No child classifications to compare. This is a leaf node in both IPC and CPC.