CPC Subgroup Additional Only
H01J 2229/50 Plurality of guns or beams
Full Title
Details of cathode ray tubes or electron beam tubes (H01J2329/00 takes precedence) > Electron guns > Plurality of guns or beams
3 direct subcodes
Child Classifications
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- H01J 2229/502 Three beam guns, e.g. for colour CRTs
- H01J 2229/505 Arrays
- H01J 2229/507 Multi-beam groups, e.g. number of beams greater than number of cathodes