28.1970 T P C was patented. 29. 1991 A O ended. 38.1958. Y N-W L were introduced in Britain..43. 1967. B F C D was opened..45. 2000 H B lifted for the A F.48.1947 The first C D C show. 50. 1932 T N F F C solid. Thank you very much. May I take this opportunity of wishing you all a Very Happy New Year and many thanks for help given during 2007.