DIFF Main Group
G01C 17/00 Compasses; Devices for ascertaining true or magnetic north for navigation or surveying purposes (using gyroscopic effect G01C19/00)
Introduced: September 1968
Title
Titles differ between systems:
IPC: Compasses; Devices for ascertaining true or magnetic north for navigation or surveying purposes
CPC: Compasses; Devices for ascertaining true or magnetic north for navigation or surveying purposes (using gyroscopic effect G01C19/00)
Full Title
Full titles differ between systems:
IPC:
Compasses; Devices for ascertaining true or magnetic north for navigation or surveying purposes
CPC:
Compasses; Devices for ascertaining true or magnetic north for navigation or surveying purposes (using gyroscopic effect G01C19/00)
IPC and CPC are identically structured here. All 4 subcodes exist in both systems.
Child Classifications
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- G01C 17/36 Repeaters for remote indication of readings of a master compass IPC+CPC Available in IPC and CPC