DIFF Subgroup
H01M 4/14 Electrodes for lead-acid accumulators
Introduced: July 1974
Full Title
Electrodes > Electrodes composed of, or comprising, active material > Electrodes for lead-acid accumulators
IPC and CPC are identically structured here. All 1 subcodes exist in both systems.
IPC defines codes here since 1974.
Child Classifications
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