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IPC Subgroup
H01M 4/73

for lead-acid accumulators, e.g. frame plates

Introduced: July 1974

Last revised: January 2006

Full Title

Electrodes > Electrodes composed of, or comprising, active material > Carriers or collectors > characterised by shape or form > Grids > for lead-acid accumulators, e.g. frame plates

Classification Context

Section:
ELECTRICITY
Class:
ELECTRIC ELEMENTS
Subclass:
PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY