Screw Propeller Patent Model. This patent model represents Jackson Harrington's 1875 design for a "propeller-wheel," which improved upon a propeller he and a colleague invented in Patent Office issued over 800 patents for paddle wheels, propellers, and other propulsion apparatus between 1790 and 1873

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Size: 1289px × 1940px
Photo credit: © SBS Eclectic Images / Alamy / Afripics
License: Licensed
Model Released: No

Keywords: industry, maritime, work