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Achtung koffeinjunkies.svg Achtung Koffeinjunkies KoffeinCaffeine svg DINWarnungvorgefelSpannungDW svg UTC derivative work CM talk KoffeinCaffeine svg NEUROtiker DINWarnungvorgefelSpannungDW svg Torsten Henning subst LOCALMONTHABBREV Warnung vor gefaehrlicher elektrischer Spannung Symbol DW nach DIN drawn by author User DrTo