Madam, - Mark Rodden (May 30th) incorrectly credits Guglielmo Marconi with the invention of wireless communications.
In their 1943 decision, the US Supreme Court awarded this distinction to Nikola Tesla, reaffirming the 1935 decision of the US Court of Claims, which invalidated Marconi's patent. - Yours, etc,
DIARMAID HORKAN, Ranelagh, Dublin 6.