H01J2893/0015 - CPC Classification

Discharge tubes and lamps; Electrodes and electrode systems suitable for discharge tubes or lamps; Constructional arrangements Non-sealed electrodes

• H01J2893/0016 » Planar grids 1
• H01J2893/0017 » Cylindrical, helical or annular grids 0
• H01J2893/0018 » Bar or cage-like grids 0