Nikola Tesla British Patent 185,446 - Method of and Apparatus for Aerial Transportation Patent added December 24, 2018 - 4:23 AM
Nikola Tesla U.S. Patent 1,655,114 - Apparatus for Aerial Transportation Patent added March 1, 2015 - 12:22 AM
Nikola Tesla U.S. Patent 1,655,113 - Method of Aerial Transportation Patent added March 1, 2015 - 12:22 AM