With the participation of 775 international exhibitors from 45 countries, the 36th International Exhibition of Inventions was opened here today. Kingdom of Saudi Arabia participates in this exhibition by a pavilion run by King Abdulaziz and His Companions Foundation for the Gifted. The number of inventions presented this year was 1000 inventions of economic, medical and scientific projects. The Exhibition will organize a competition on next Friday for the best inventions presented at this session.