DIFF Main Group
H01J 29/00 Details of cathode-ray tubes or of electron-beam tubes of the types covered by group H01J31/00
Introduced: September 1968
Title
Titles differ between systems:
IPC: Details of cathode-ray tubes or of electron-beam tubes of the types covered by group
CPC: Details of cathode-ray tubes or of electron-beam tubes of the types covered by group H01J31/00
Full Title
Full titles differ between systems:
IPC:
Details of cathode-ray tubes or of electron-beam tubes of the types covered by group
CPC:
Details of cathode-ray tubes or of electron-beam tubes of the types covered by group H01J31/00
Of 11 combined children, 9 exist in both systems.
2 codes are CPC-only extensions.
1 shared codes have differing titles between IPC and CPC.
Child Classifications
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- H01J 29/02 Electrodes; Screens; Mounting, supporting, spacing or insulating thereof +5 CPC IPC+CPC Available in IPC and CPC
- H01J 29/46 Arrangements of electrodes and associated parts for generating or controlling the ray or beam, e.g. electron-optical arrangement +3 CPC IPC+CPC Available in IPC and CPC
- H01J 29/84 Arrangements for removing or diverting unwanted particles, e.g. for negative ions or fringing electrons; Arrangements for velocity or mass selection +1 CPC IPC+CPC Available in IPC and CPC
- H01J 29/92 Means forming part of the tube for the purpose of providing electrical connection to it +1 CPC IPC+CPC Available in IPC and CPC
- H01J 29/94 Selection of substances for gas fillings; Means for obtaining or maintaining the desired pressure within the tube, e.g. by gettering IPC+CPC Available in IPC and CPC
- H01J 29/96 One or more circuit elements structurally associated with the tube IPC+CPC Available in IPC and CPC
- H01J 29/98 Circuit arrangements not adapted to a particular application of the tube and not otherwise provided for IPC+CPC Available in IPC and CPC