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DIFF Subgroup Additional Only
H01J 2211/44

Optical arrangements or shielding arrangements, e.g. filters or lenses

Full Title

Plasma display panels with alternate current induction of the discharge, e.g. AC-PDPs > Constructional details > Vessels, containers or parts thereof, e.g. substrates > Optical arrangements or shielding arrangements, e.g. filters or lenses

Of 4 combined children, 0 exist in both systems.

4 codes are CPC-only extensions.

Note: 4 CPC extensions are marked as secondary classification only.