DIFF Subgroup
H01J 13/02 Details
Introduced: September 1968
Full Title
Discharge tubes with liquid-pool cathodes, e.g. metal-vapour rectifying tubes > Details
IPC and CPC are identically structured here. All 11 subcodes exist in both systems.
3 shared codes have differing titles between IPC and CPC.
Child Classifications
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- H01J 13/20 Control electrodes, e.g. grid (for igniting arrangements H01J13/34) IPC+CPC Available in IPC and CPC
- H01J 13/26 Seals between parts of vessels; Seals for leading-in conductors; Leading-in conductors +2 CPC IPC+CPC Available in IPC and CPC
- H01J 13/28 Selection of substances for gas filling; Means for obtaining the desired pressure within the tube IPC+CPC Available in IPC and CPC
- H01J 13/32 Cooling arrangements; Heating arrangements (for cathodes H01J13/14; for anodes H01J13/18) IPC+CPC Available in IPC and CPC
- H01J 13/46 One or more circuit elements structurally associated with the tube IPC+CPC Available in IPC and CPC
- H01J 13/48 Circuit arrangements not adapted to a particular application of the tube and not otherwise provided for IPC+CPC Available in IPC and CPC