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PCE
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DIFF Subgroup
G01C 19/36

with north-seeking action by magnetic means, e.g. gyromagnetic 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 indicating a direction in the horizontal plane, e.g. directional gyroscopes > with north-seeking action by magnetic means, e.g. gyromagnetic compasses

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