Patent Drawing for G. Marconi's Transmitting Electrical Signals
7/13/1897
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This primary source comes from the Records of the Patent and Trademark Office, 1836 - 1978.
National Archives Identifier: 7451917
Full Citation: Patent Drawing for G. Marconi's Transmitting Electrical Signals; 7/13/1897; Records of the Patent and Trademark Office, 1836 - 1978, Record Group 241. [Online Version, https://www.docsteach.org/documents/document/patent-drawing-for-g-marconis-transmitting-electrical-signals, March 29, 2024]Rights: Public Domain, Free of Known Copyright Restrictions. Learn more on our privacy and legal page.