H01J2201/00 - CPC Classification Index

ClassID:

205748 ⎘

H01J2201/00 - CPC Classification

Classification description:

Electrodes common to discharge tubes

Sub-classes:

H01J2201/02 » Arrangements for eliminating deleterious effects 2
H01J2201/19 » Thermionic cathodes 5
H01J2201/28 » Heaters for thermionic cathodes 3
H01J2201/30 » Cold cathodes 4
H01J2201/32 » Secondary emission electrodes 7
H01J2201/34 » Photoemissive electrodes 0

Recent Application in this class:

20160057820

Light-emitting device