DIFF Subgroup
H01J 13/18 Cooling or heating of anodes
Introduced: September 1968
Full Title
Discharge tubes with liquid-pool cathodes, e.g. metal-vapour rectifying tubes > Details > Main electrodes; Auxiliary anodes > Anodes; Auxiliary anodes for maintaining the discharge > Cooling or heating of anodes
No child classifications to compare. This is a leaf node in both IPC and CPC.