DIFF Subgroup
H01J 23/11 Means for reducing noise (in electron or ion gun H01J23/06)
Introduced: September 1968
Title
Titles differ between systems:
IPC: Means for reducing noise
CPC: Means for reducing noise (in electron or ion gun H01J23/06)
Full Title
Full titles differ between systems:
IPC:
Details of transit-time tubes of the types covered by group > Electrodes; Magnetic control means; Screens > Means for reducing noise
CPC:
Details of transit-time tubes of the types covered by group H01J25/00 > Electrodes; Magnetic control means; Screens (associated with resonator or delay system H01J23/16) > Means for reducing noise (in electron or ion gun H01J23/06)
No child classifications to compare. This is a leaf node in both IPC and CPC.