206097 ⎘
Details of cathode ray tubes or electron beam tubes; Electron guns characterised by beam passing apertures or combinations
Sub-classes:Low aberration, high intensity electron beam for X-ray tubes
#2High-definition cathode ray tube and electron gun
#3High-definition cathode ray tube and electron gun with lower power consumption
#4Electron gun assembly and cathode ray tube with the same
#5High-definition cathode ray tube and electron gun