DIFF Subgroup
G01Q 30/04 Display or data processing devices
Introduced: January 2010
Full Title
Auxiliary means serving to assist or improve the scanning probe techniques or apparatus, e.g. display or data processing devices > Display or data processing devices
IPC and CPC are identically structured here. All 1 subcodes exist in both systems.
IPC defines codes here since 2010.
Child Classifications
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