CPC Subgroup
H01M 8/043 applied during specific periods
Full Title
Fuel cells; Manufacture thereof > Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids > Processes for controlling fuel cells or fuel cell systems > applied during specific periods
2 direct subcodes
Child Classifications
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- H01M 8/04302 applied during start-up
- H01M 8/04303 applied during shut-down