H01J2893/0073 - CPC Classification

Discharge tubes and lamps; Disassembly or repair of discharge tubes Discharge tubes with liquid poolcathodes; constructional details

• H01J2893/0074 » Cathodic cups; Screens; Reflectors; Filters; Windows; Protection against mercury deposition; Returning condensed electrode material to the cathodic cup; Liquid electrode level control 0