Patent fuel and similar solid fuels manufactured from hard coal

**Includes:** - Patent fuel, i.e. a composition fuel made by moulding hard coal fines into briquette shapes with the addition of a binding agent. This product is sometimes referred to as "hard coal briquettes". - Other solid fuels manufactured from hard coal

**Excludes:** - brown coal briquettes (BKB) and similar solid fuels manufactured from brown coal, cf. 11040