01
Industrial chemicals, including acids for the production of
batteries and accumulators; acidulated water for
replenishing accumulators; liquids for removing sulphates
from electrical accumulators; anti-frothing solutions for
accumulators
09
Scientific, nautical, surveying, photographic,
cinematographic, optical, weighing, measuring, signalling,
controlling, life-saving, and teaching apparatus and
instruments; apparatus and instruments for conducting,
switching, transforming, accumulating, regulating and
controlling electricity; apparatus for recording,
transmission and reproduction of sound and images; magnetic
data carriers, recording discs, in particular accumulators
(electrical) also for automobiles; grids for electrical
accumulators; chargers for electrical accumulators; plates
for batteries; acidimeters for accumulators; accumulator
jars; accumulator boxes; anode batteries; electric
batteries; solar batteries; batteries for lighting; fuel
cells
42
Engineering; development of and research on fuel cells,
accumulators, and batteries
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