DIFF Subgroup
G04R 20/14 the radio signal being a telecommunication standard signal, e.g. GSM
Introduced: January 2013
Full Title
Setting the time according to the time information carried or implied by the radio signal > the radio signal being a telecommunication standard signal, e.g. GSM
IPC and CPC are identically structured here. All 2 subcodes exist in both systems.
IPC defines codes here since 2013.
Child Classifications
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