Treatment of common metals; treatment of precious metals; processing of photographic and cinematographic films; photocomposing, photographic printing, photogravure; drying, canning, freezing, smoking, corning foodstuff; providing information in the field of food manufacturing; slaughtering of animals; leather working and fur conditioning; saddlery working; textile treating, wool treating; dressmaking, embroidering; woodworking and timber processing; framing of works of art; treatment of liqui...