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PCE
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DIFF Subgroup
G01C 17/18

Supporting or suspending compasses, e.g. by gimbal, by flotation

Introduced: September 1968

Full Title

Full titles differ between systems:

IPC:

Compasses; Devices for ascertaining true or magnetic north for navigation or surveying purposes > Magnetic compasses > with north-seeking magnetic elements, e.g. needles > Supporting or suspending compasses, e.g. by gimbal, by flotation

CPC:

Compasses; Devices for ascertaining true or magnetic north for navigation or surveying purposes (using gyroscopic effect G01C19/00) > Magnetic compasses > with north-seeking magnetic elements, e.g. needles > Supporting or suspending compasses, e.g. by gimbal, by flotation

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