CPC Subgroup Additional Only
H01J 2201/30449 Metals and metal alloys
Full Title
Electrodes common to discharge tubes > Cold cathodes > Field emission cathodes > characterised by the emitter material > Metals and metal alloys
H01J 2201/30449 Electrodes common to discharge tubes > Cold cathodes > Field emission cathodes > characterised by the emitter material > Metals and metal alloys