Case T-471/17: Judgment of the General Court of 7 December 2018 — Edison v EUIPO (EDISON) (EU trade mark — EU figurative mark EDISON — Partial surrender — Article 50 of Regulation (EC) No 207/2009 (now Article 57 of Regulation (EU) 2017/1001) — Interpretation of terms contained in a class heading of the Nice Classification and the goods appearing on the accompanying alphabetic list)