Details

Introduced: September 1968

Full Title

Full titles differ between systems:

IPC:

Discharge tubes with provision for introducing objects or material to be exposed to the discharge, e.g. for the purpose of examination or processing thereof > Details

CPC:

Discharge tubes with provision for introducing objects or material to be exposed to the discharge, e.g. for the purpose of examination or processing thereof (H01J33/00, H01J40/00, H01J41/00, H01J47/00, H01J49/00 take precedence) > Details

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 37/023 CPC only CPC only
H01J 37/026 CPC only CPC only
H01J 37/04 Arrangements of electrodes and associated parts for generating or controlling the discharge, e.g. electron-optical arrangement or ion-optical arrangement +1 CPC IPC+CPC Available in IPC and CPC
H01J 37/16 Vessels; Containers +1 CPC IPC+CPC Available in IPC and CPC
H01J 37/18 Vacuum locks +1 CPC IPC+CPC Available in IPC and CPC
H01J 37/20 Means for supporting or positioning the object or the material; Means for adjusting diaphragms or lenses associated with the support IPC+CPC Available in IPC and CPC
H01J 37/21 Means for adjusting the focus since 1974 IPC+CPC Available in IPC and CPC
H01J 37/22 Optical or photographic arrangements associated with the tube +3 CPC IPC+CPC Available in IPC and CPC
H01J 37/24 Circuit arrangements not adapted to a particular application of the tube and not otherwise provided for +3 CPC IPC+CPC Available in IPC and CPC
H01J 37/244 Detectors; Associated components or circuits therefor since 1980 IPC+CPC Available in IPC and CPC
H01J 37/248 Components associated with high voltage supply since 1980 IPC+CPC Available in IPC and CPC