- All sections
- H - Electricity
- H01J - Electric discharge tubes or discharge lamps
- H01J 17/42 - Cold-cathode tubes with one cathode and one anode, e.g. glow tubes, tuning-indicator glow tubes, voltage-stabiliser tubes or voltage-indicator tubes having one or more probe electrodes, e.g. for potential dividing
Patent holdings for IPC class H01J 17/42
Total number of patents in this class: 0
10-year publication summary
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Principal owners for this class
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