| Classification of Products ver. 2002 (CZ-CPA) - level 4 - Group | 
                    334 | 
                    Optical instruments and photographic equipment | 
                  
                
                  
                    | Classification of Products ver. 2002 (CZ-CPA) - level 6 - Category | 
                    33401 | 
                    Spectacles, lenses and parts thereof | 
                  
                
                  
                    | Classification of Products ver. 2002 (CZ-CPA) - level 6 - Category | 
                    33402 | 
                    Other optical instruments and parts thereof | 
                  
                
                  
                    | Classification of Products ver. 2002 (CZ-CPA) - level 6 - Category | 
                    33403 | 
                    Photographic equipment and parts thereof | 
                  
                
                  
                    | Classification of Products ver. 2002 (CZ-CPA) - level 6 - Category | 
                    33409 | 
                    Installation, repair and maintenance services of professional photographic, cinematographic and optical instruments |