Science and invention in Birmingham 1054 Mk XVIs) had been built. CBAF became the largest and most successful plant of its type during the 1939–45 conflict. As the largest Spitfire factory in the UK, by producing up to 320 aircraft per month, it built over half of the approximately 20,000 aircraft of this type. 1944: Anthony Ernest Pratt takes out his first patent for a board game named 'Murder', this is later to become the world-renowned murder mystery game 'Cluedo'. 1946: Chance Brothers produce the first all-glass syringe with interchangeable barrel and plunger, thereby allowing mass sterilisation of components without the need for matching them.
Anthony E. Pratt Anthony and his wife Elva (1913-1990) began designing a murder mystery board game. The original game was called "Murder!", with the artwork for the board itself designed by Elva. Pratt filed his original patent application on 1 December 1944. He had spoken to a close friend, Geoffrey Bull (who had invented the board game Buccaneer), and it was Bull who introduced him to Norman Watson, managing director of games manufacturer Waddingtons. In February 1945, Pratt demonstrated the game to Watson, who immediately saw the winning formula of the game and, after a few minor modifications, decided to go ahead and