DIFF Subgroup
H01J 5/16 Optical or photographic arrangements structurally combined with the vessel
Introduced: September 1968
Full Title
Details relating to vessels or to leading-in conductors common to two or more basic types of discharge tubes or lamps > Vessels; Containers; Shields associated therewith; Vacuum locks > Optical or photographic arrangements structurally combined with the vessel
No child classifications to compare. This is a leaf node in both IPC and CPC.