DIFF Subgroup
H01M 8/0693 Full Title
Fuel cells; Manufacture thereof > Combination of fuel cells with means for production of reactants or for treatment of residues (regenerative fuel cells H01M8/18)
H01M 8/0693 Fuel cells; Manufacture thereof > Combination of fuel cells with means for production of reactants or for treatment of residues (regenerative fuel cells H01M8/18)