DIFF Main Group
H03H 11/00 Networks using active elements
Introduced: September 1968
IPC and CPC are identically structured here. All 3 subcodes exist in both systems.
IPC defines codes here since 1980.
Child Classifications
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- H03H 11/54 Modifications of networks to reduce influence of variations of temperature since 1980 IPC+CPC Available in IPC and CPC