Near-field transmission systems, e.g. inductive or capacitive transmission systems

Introduced: September 1968

IPC and CPC are identically structured here. All 3 subcodes exist in both systems.

IPC defines codes here since 2024.

Child Classifications

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H04B 5/20 characterised by the transmission technique; characterised by the transmission medium since 2024 IPC+CPC Available in IPC and CPC
H04B 5/40 characterised by components specially adapted for near-field transmission since 2024 IPC+CPC Available in IPC and CPC
H04B 5/70 specially adapted for specific purposes since 2024 IPC+CPC Available in IPC and CPC