DIFF Main Group
H05B 33/00 Electroluminescent light sources
Introduced: September 1968
IPC and CPC are identically structured here. All 3 subcodes exist in both systems.
Child Classifications
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- H05B 33/10 Apparatus or processes specially adapted to the manufacture of electroluminescent light sources IPC+CPC Available in IPC and CPC
- H05B 33/12 Light sources with substantially two-dimensional [2D] radiating surfaces IPC+CPC Available in IPC and CPC