Treatment of common metals; treatment of precious metals; development of photographic and cinematographic films; photocomposing, photographic printing, photogravure; drying, canning, freezing, smoking and preserving of foodstuff; information services on food processing and production; slaughtering of animals; leather working and fur conditioning; saddlery working; textile treating, wool treating; tailoring, embroidery; woodworking and timber processing; framing of works of art; treatment of l...