72.19.Z - Other research and experimental development on natural sciences and engineering
                                    
                                            
                                        26.60.Z - Manufacture of irradiation, electromedical and electrotherapeutic equipment
                                    
                                            
                                        26.70.Z - Manufacture of optical instruments, magnetic and optical media and photographic equipment
                                    
                                            
                                        28.99.Z - Manufacture of other special-purpose machinery n.e.c.
                                    
                                            
                                        32.50.Z - Manufacture of medical and dental instruments and supplies
                                    
                                            
                                        33.13.Z - Repair and maintenance of electronic and optical equipment
                                    
                                            
                                        47.99.Z - Other retail sale not in stores, stalls or markets
                                    
                                            
                                        74.90.Z - Other professional, scientific and technical activities not elsewhere classified
                                    
                                            
                                        85.60.Z - Educational support activities
                                    
                                            
                                        96.09.Z - Other personal service activities not elsewhere classified