DIFF Subgroup
H01J 13/48 Circuit arrangements not adapted to a particular application of the tube and not otherwise provided for
Introduced: September 1968
Full Title
Discharge tubes with liquid-pool cathodes, e.g. metal-vapour rectifying tubes > Details > Circuit arrangements not adapted to a particular application of the tube and not otherwise provided for
No child classifications to compare. This is a leaf node in both IPC and CPC.