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PCE
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CPC Subgroup
G01C 19/34

for indicating a direction in the horizontal plane, e.g. directional gyroscopes

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

2 direct subcodes

Child Classifications

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  • G01C 19/36 with north-seeking action by magnetic means, e.g. gyromagnetic compasses
  • G01C 19/38 with north-seeking action by other than magnetic means, e.g. gyrocompasses using earth's rotation