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DIFF Subgroup
H01J 1/32

Secondary-electron-emitting electrodes (H01J1/35 takes precedence)

Introduced: September 1968

Title

Titles differ between systems:

IPC: Secondary-electron emitting electrodes

CPC: Secondary-electron-emitting electrodes (H01J1/35 takes precedence)

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 > Main electrodes > Secondary-electron emitting electrodes

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) > Main electrodes > Secondary-electron-emitting electrodes (H01J1/35 takes precedence)

No child classifications to compare. This is a leaf node in both IPC and CPC.