DIFF Subgroup
H01J 1/50 Magnetic means for controlling the discharge
Introduced: September 1968
Full Title
Full titles differ between systems:
IPC:
Details of electrodes, of magnetic control means, of screens, or of the mounting or spacing thereof, common to two or more basic types of discharge tubes or lamps > Magnetic means for controlling the discharge
CPC:
Details of electrodes, of magnetic control means, of screens, or of the mounting or spacing thereof, common to two or more basic types of discharge tubes or lamps (details of electron-optical or ion-optical arrangements H01J3/00) > Magnetic means for controlling the discharge
No child classifications to compare. This is a leaf node in both IPC and CPC.