law 97 construction laws 57 laws 42 copyright 26 patent law 24 international law 22 industrial rights 21 more ... intellectual property law 20 environmental law 17 commercial law 16 civil engineering 15 taxes 13 European law 13 internet 11 immovable property 11 provisions 11 land register 10 international treaties 10 civil law 10 data protection 10 contracts 10 environment 10 apartments 9 public administration 9 teaching aids 9 cadastral maps 8 protection of personality 8 labour law 8 telecommunications 8 right of ownership 8 less ...