1930 - Submarine Salvage Robot by Harry L. Bowdoin Artists depiction of Salvage tank. Really a cross between Bowdoin's Armoured Suit and the Diving Bell. Source: The Ogden Standard Examiner, Feb 21, 1932. Another artists depiction of the diving apparatus. Source: Modern Mechanics and Invention, Sept 1931. Large Robot…
The inventor Emil Kulik and his deep-sea rescue apparatus. Patent exhibition at the Grand Palace / New York. About 1930. Photograph. (Photo by Austrian Archives/Imagno/Getty Images) *** Local Caption ***
UNSPECIFIED - CIRCA 1931: Submarine for ship recovery, America, Photograph, August 29th 1931 (Photo by Imagno/Getty Images) [U-Boot f?r Schiffsbergungen, Amerika, Photographie, 29,8,1931]
A small submersible with robot arms, 1932. (Photo by FPG/Hulton Archive/Getty Images)