H01J13/40 - CPC Classification Index

ClassID:

204729 ⎘

H01J13/40 - CPC Classification

Classification description:

Discharge tubes with liquid-pool cathodes, e.g. metal-vapour rectifying tubes; Details; Igniting arrangements Igniting by movement of a solid electrode

Sub-classes:

H01J13/405 » {Interrupting contact with liquid cathode} 0