Nikola Tesla British Patent 24,421 - Improvements in Systems for the Transmission of Electrical Energy and Apparatus for Use Therein
Nikola Tesla U.S. Patent 685,955 - Apparatus for Utilizing Effects Transmitted From A Distance To A Receiving Device Through Natural Media
Nikola Tesla British Patent 26,371 - Improvements in the Method of and Apparatus for Controlling the Mechanism of Floating Vessels or Moving Vehicles
