MARCIN OLCZAK

72.19.Z - Other research and experimental development on natural sciences and engineering

43.21.Z - Electrical installation

46.52.Z - Wholesale of electronic and telecommunications equipment and parts thereof

46.69.Z - Wholesale of other machinery and equipment

47.54.Z - Retail sale of electrical household appliances in specialised stores

47.71.Z - Retail sale of clothing in specialised stores

47.74.Z - Retail sale of medical and orthopaedic goods in specialised stores

47.78.Z - Other retail sale of new goods in specialised stores

47.91.Z - Retail sale via mail order houses or via Internet

70.22.Z - Business and other management consultancy activities

72.11.Z - Research and experimental development on biotechnology

77.11.Z - Rental and leasing of cars and light motor vehicles

77.12.Z - Rental and leasing of other motor vehicle, excluding motorcycles

77.33.Z - Rental and leasing of office machinery and equipment, including computers

77.39.Z - Rental and leasing of other machinery, equipment and tangible goods not elsewhere classified

86.22.Z - Specialist medical practice activities

86.23.Z - Dental practice activities

86.90.D - Paramedical activities

86.90.E - Other human health activities notelsewhere classified