204476 ⎘
Details of electrodes, of magnetic control means, of screens, or of the mounting or spacing thereof, common to two or more basic types of discharge tubes or lamps; Main electrodes Solid anodes; Solid auxiliary anodes for maintaining a discharge
Sub-classes:Apparatus for generating electron radiation and three-dimensional printing apparatus
#2Versatile spin-polarized electron source
#3Method for manufacturing nanostructures and cathode for field emission lighting arrangement
#4Process for producing a high-temperature-resistant composite body