CPC Subgroup Additional Only
H01J 2229/58 Electron beam control inside the vessel
Full Title
Details of cathode ray tubes or electron beam tubes (H01J2329/00 takes precedence) > Electron beam control inside the vessel
5 direct subcodes
Child Classifications
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- H01J 2229/581 by magnetic means
- H01J 2229/582 by electrostatic means
- H01J 2229/583 at the source
- H01J 2229/585 at the screen
- H01J 2229/587 between the source and the screen