These methods contributed much to the development of wireless telegraphy. Mawson's technological interests extended to the new field of wireless telegraphy. Co. Wexford, was the grandfather of Guglielmo Marconi, inventor of wireless telegraphy. This was the start of wireless telegraphy by radio. Some of the devices which would enable wireless telegraphy were invented before 1900. This was passed to the analysis and evaluation section by Teleprinter or Wireless telegraphy. Reinhard Scheer, taking on the position of 3rd wireless telegraphy officer. Radio development began as "wireless telegraphy". Following Marconi's success many people began experimenting with this new form of "wireless telegraphy". Fleming also contributed in the fields of photometry, electronics, wireless telegraphy (radio), and electrical measurements. He worked on wireless telegraphy at Jena under Max Wien. Wireless telegraphy developed in the early 20th century. On 17 April 1923, it was renamed "Telefunken, The Company for Wireless Telegraphy". Recruits were trained in one of four fields&colon; Motor Transport, Wireless Telegraphy, Codes or General. This patent gave Marconi a near monopoly of syntonic wireless telegraphy in England and America.