CPC Main Group Additional Only
H01J 2893/00 Discharge tubes and lamps
17 direct subcodes
Child Classifications
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- H01J 2893/0001 Electrodes and electrode systems suitable for discharge tubes or lamps
- H01J 2893/0029 Electron beam tubes
- H01J 2893/003 Tubes with plural electrode systems
- H01J 2893/0031 Tubes with material luminescing under electron bombardment
- H01J 2893/0032 Tubes with variable amplification factor
- H01J 2893/0033 Vacuum connection techniques applicable to discharge tubes and lamps
- H01J 2893/0048 Tubes with a main cathode
- H01J 2893/0059 Arc discharge tubes
- H01J 2893/006 Tubes with electron bombarded gas (e.g. with plasma filter)
- H01J 2893/0061 Tubes with discharge used as electron source
- H01J 2893/0062 Tubes with temperature ionized gas as electron source
- H01J 2893/0063 Plasma light sources
- H01J 2893/0064 Tubes with cold main electrodes (including cold cathodes)
- H01J 2893/0069 Tubes for displaying characters
- H01J 2893/007 Sequential discharge tubes
- H01J 2893/0072 Disassembly or repair of discharge tubes
- H01J 2893/0096 Transport of discharge tube components during manufacture, e.g. wires, coils, lamps, contacts, etc.