World Intellectual Property Organization (WIPO) on Twitter: "#WorldRadioDay: Drawing from Tesla's “basic radio” #patent, called “system of transmission of electrical energy” https://t.co/Rev9MLWLgp" / Twitter
Amazon.com: Retro Radio Patent- 11x14 Unframed Patent Print Poster - Makes a Great Gift Under $15 for Retro Home Decor : Handmade Products
Radio Constuction Patent Drawing From 1959 - Vintage Digital Art by Aged Pixel