CPC Subgroup
H01J 3/06 two or more guns being arranged in a single vacuum space, e.g. for plural-ray tubes (H01J3/07 takes precedence)
Full Title
Details of electron-optical or ion-optical arrangements common to two or more basic types of discharge tubes or lamps > two or more guns being arranged in a single vacuum space, e.g. for plural-ray tubes (H01J3/07 takes precedence)