DIFF Subgroup
H01M 8/18 Regenerative fuel cells, e.g. redox flow batteries or secondary fuel cells
Introduced: July 1974
Full Title
Fuel cells; Manufacture thereof > Regenerative fuel cells, e.g. redox flow batteries or secondary fuel cells
Of 2 combined children, 0 exist in both systems.
2 codes are CPC-only extensions.
Child Classifications
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