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• 07:33, 7 June 2024 Peter talk contribs created page Patent US 5134337A (Created page with "{{Patent |Office=US |Number=5134337A |Title=Projection lens assembly for planar electron source |Company=Tektronix |Inventors=Keith F. Kongslie;Gary Nelson;Duncan F. Hughes |Filing date=1991-07-05 |Grant date=1992-07-28 }}")