21. The Post Office built an experimental wireless telegraph station on Meall an Inbhire near Tobermory in 1892. 22. Then, in 1913, the Marconi Wireless Company bought this site to establish a transpacific wireless telegraph station. 23. In 1905, a wireless telegraph was installed, replacing the previous communication via light signals to passing ships. 24. He developed the De Forest method of wireless telegraphy and founded the American De Forest Wireless Telegraph Company. 25. The territorial dispute escalated in 1925 with the construction of an Argentinian wireless telegraph station on the island. 26. These new types of waves paved the way for inventions such as the wireless telegraph and the radio. 27. The ships had an wireless telegraph . 28. In 1903, Canadian Pacific Lines purchased the ship, with 14 others, and equipped her with a wireless telegraph . 29. They were constructed by the Marconi Wireless Telegraph Company and operated by the General Post Office ( GPO ). 30. During the 1920s, there was an increasing competition from companies using radio communications such as Marconi's Wireless Telegraph Company.
