Modifications of scanning arrangements to improve focusing

Introduced: September 1968

Full Title

Full titles differ between systems:

IPC:

Scanning details of television systems; Combination thereof with generation of supply voltages > by means not exclusively optical-mechanical > by deflecting electron beam in cathode-ray tube > Modifications of scanning arrangements to improve focusing

CPC:

Scanning details of television systems; Combination thereof with generation of supply voltages > by means not exclusively optical-mechanical (H04N3/36 takes precedence) > by deflecting electron beam in cathode-ray tube > Modifications of scanning arrangements to improve focusing

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