patent
Guglielmo Marconi patent, radio transmitter vintage print
Description: Transmitting electrical signals patent by the inventor of radio Guglielmo Marconi, 1897. PRINTABLE DIGITAL IMAGE Printable digital file can be used for creating art print, poster and other wall art …
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Nikola Tesla – Wireless electrical energy transmitter patent print
Description: 1914 Nikola Tesla patent for “Apparatus for transmitting electrical energy” also known as Wardenclyffe Tower wireless transmitter based on huge Tesla coils. Wardenclyffe Tower was one of the most …
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RCA vintage ribbon microphone patent poster, studio decor
Description: Vintage classic RCA 44 ribbon microphone patent print. This microphone model was used by Frank Sinatra and other famous singers of 1940-60s. PRINTABLE DIGITAL IMAGE Printable digital file can …
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Electric Chair patent – execution, death chamber vintage print
Description: “Device for applying electricity to the human body” patent. It’s one of the earliest Electric Chair models. Patent dated Dec. 30, 1884. PRINTABLE DIGITAL IMAGE Printable digital file can …
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