Establishment and operation of billiard halls and game centers, as well as billiard tables for own or third-party account, provision of services in the field of billiards such as brokerage of know-how for the operation of billiard halls, organization of billiard events and training, trade in billiard tables, billiard cues and accessories as well as game and entertainment machines of all kinds; can assume representations and acquire and exploit relevant inventions, patents and processes, participate in other companies and acquire, manage and sell real estate.