CPC Subgroup Additional Only
H01J 2231/50057 characterised by form of output stage
Full Title
Cathode ray tubes or electron beam tubes (H01J2329/00 takes precedence) > Imaging and conversion tubes > characterised by form of output stage
3 direct subcodes
Child Classifications
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- H01J 2231/50063 Optical
- H01J 2231/50068 Electrical
- H01J 2231/50089 Having optical stage before electrical conversion