DIFF Subgroup
H01J 13/22 Screens, e.g. for preventing or eliminating arcing-back
Introduced: September 1968
Full Title
Discharge tubes with liquid-pool cathodes, e.g. metal-vapour rectifying tubes > Details > Screens, e.g. for preventing or eliminating arcing-back
No child classifications to compare. This is a leaf node in both IPC and CPC.