APPARATUS FOR TRANSMISSION OF ELECTRICAL ENERGY
Drawing from U.S. Patent No. 649,621, "Apparatus for Transmission of Electrical Energy" showing a system for the wireless transmission and reception of electrical energy through the earth’s rarefied upper atmo... Еще
Tesla Turbine Original - Drawing. Public domain image.
Tesla turbine diagram U.S. Patent 1,061,206 1909 October 21 – Turbine – Improvements in rotary engines and turbines; Mechanical power based the vehicle of fluid for power; Known as the Tesla turbine; Bladeless... Еще
Patent drawing - US Patent 645576 Nikola Tesla 1897 System of transmis...
Drawing from US patent no. 645576 filed September 2 1897 by inventor Nikola Tesla covering his proposed system for transmitting electric power through the air without wires. Tesla believed that at 30,000 feet... Еще
Patent Drawing of Engine - US390721 Public domain image
Public domain scan of technical drawing, 19th-20th-century, free to use, no copyright restrictions image - Picryl description