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PCE
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Search for IPC and CPC classification codes or keywords
DIFF Subgroup
G01C 21/02

by astronomical means (G01C21/24, G01C21/26 take precedence)

Introduced: September 1968

Title

Titles differ between systems:

IPC: by astronomical means

CPC: by astronomical means (G01C21/24, G01C21/26 take precedence)

Full Title

Full titles differ between systems:

IPC:

Navigation; Navigational instruments not provided for in groups > by astronomical means

CPC:

Navigation; Navigational instruments not provided for in groups G01C1/00 - G01C19/00 (measuring distance traversed on the ground by a vehicle G01C22/00; control of position, course, altitude or attitude of vehicles G05D1/00; traffic control systems for road vehicles involving transmission of navigation instructions to the vehicle G08G1/0968) > by astronomical means (G01C21/24, G01C21/26 take precedence)

Of 1 combined children, 0 exist in both systems.

1 codes are CPC-only extensions.

Child Classifications

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