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PCE
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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 13/22 Screens, e.g. for preventing or eliminating arcing-back 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 13/44 Devices for preventing or eliminating arcing-back 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