Marek Sieńkowski Technika estradowa i studyjna

74.90.Z - Other professional, scientific and technical activities not elsewhere classified

33.20.Z - Installation of industrial machinery and equipment and outfit

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

47.41.Z - Retail sale of computers, peripheral units and software in specialised stores

47.42.Z - Retail sale of telecommunications equipment in specialised stores

47.43.Z - Retail sale of audio and video equipment in specialised stores

47.63.Z - Retail sale of music and video recordings in specialised stores

59.11.Z - Motion picture, video and television programme production activities

59.12.Z - Motion picture, video and television programme post-production activities

59.14.Z - Motion picture projection activities

59.20.Z - Sound recording and music publishing activities

62.01.Z - Computer programming activities

62.09.Z - Other information technology and computer service activities