DIFF Main Group Additional Only
G02F 2413/00 Indexing scheme related to G02F1/13363, i.e. to birefringent elements, e.g. for optical compensation, characterised by the number, position, orientation or value of the compensation plates
Of 13 combined children, 0 exist in both systems.
13 codes are CPC-only extensions.
Note: 13 CPC extensions are marked as secondary classification only.