IPC Subgroup
H01J 13/02 Details
Introduced: September 1968
Last revised: January 2006
Full Title
Discharge tubes with liquid-pool cathodes, e.g. metal-vapour rectifying tubes > Details
Classification Context
- Section:
- ELECTRICITY
- Class:
- ELECTRIC ELEMENTS
- Subclass:
- ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
11 direct subcodes
Child Classifications
Navigate with arrow keys, Enter to open
- H01J 13/04 Main electrodes; Auxiliary anodes
- H01J 13/2 Control electrodes, e.g. grid
- H01J 13/22 Screens, e.g. for preventing or eliminating arcing-back
- H01J 13/24 Vessels; Containers
- H01J 13/26 Seals between parts of vessels; Seals for leading-in conductors; Leading-in conductors
- H01J 13/28 Selection of substances for gas filling; Means for obtaining or maintaining the desired pressure within the tube
- H01J 13/32 Cooling arrangements; Heating arrangements
- H01J 13/34 Igniting arrangements
- H01J 13/44 Devices for preventing or eliminating arcing-back
- H01J 13/46 One or more circuit elements structurally associated with the tube
- H01J 13/48 Circuit arrangements not adapted to a particular application of the tube and not otherwise provided for