Nikola Tesla U.S. Patent 787,412 - Art of Transmitting Electrical Energy through the Natural Mediums Patent Wrapper Page 19

532 2 (by charge of N) uti lizing electrical energy, which consists in establishing in the natural conducting media, stationary electrical waves, and varying the length of such waves, as herein set forth. 6. The improvement in the art of transmitting and utilizing electrical energy, which consists in establishing in the natural conducting media stationary electrical waves and shifting the nodal and ventral regions of these waves, as described. Spikole Tesle Witnesses: "M. Lernou by miller. Benjamin Miller. -waves explained ✓ W. Baum until manner of producing stationary. -14