DIFF Subgroup
F02P 5/155 Analogue data processing
Introduced: January 1985
Full Title
Full titles differ between systems:
IPC:
Advancing or retarding electric ignition spark; Control therefor > automatically, as a function of the working conditions of the engine or vehicle or of the atmospheric conditions > using electrical means > Analogue data processing
CPC:
Advancing or retarding ignition; Control therefor > automatically, as a function of the working conditions of the engine or vehicle or of the atmospheric conditions (dependent on position of personal controls of engine F02P5/02) > using electrical means > Analogue data processing
Of 3 combined children, 0 exist in both systems.
3 codes are CPC-only extensions.
Child Classifications
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