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PCE
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DIFF Subgroup
H01J 19/54

Vessels; Containers; Shields associated therewith

Introduced: September 1968

Full Title

Full titles differ between systems:

IPC:

Details of vacuum tubes of the types covered by group > Vessels; Containers; Shields associated therewith

CPC:

Details of vacuum tubes of the types covered by group H01J21/00 > Vessels; Containers; Shields associated therewith

IPC and CPC are identically structured here. All 2 subcodes exist in both systems.

Child Classifications

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  • H01J 19/56 characterised by the material of the vessel or container IPC+CPC Available in IPC and CPC
  • H01J 19/57 provided with coatings on the walls thereof; Selection of materials for the coatings IPC+CPC Available in IPC and CPC