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U.S. Patent Model or Salesman's Sample for Au...
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"The Minneapolis Panel Silo", 1912...
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4 Orthopedic Patent Models/Salesman's Samples...
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Ulvir Radiation Lamp, c. 1930...
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Magneto-Electric Shock Generator, c. 1880...
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Copper Plate Press by Hughes & Kimber, London...
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Demonstration Combination Lock, c. 1920...
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5 Interesting Books about Technical Innovatio...
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Ophthalmological Trial Lens Case and 3 Old Gl...
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Line Recorder by R. Fuess, c. 1915...
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Early Hadley’s Reflecting Quadrant (Octant), ...
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Early Two-Day Marine Chronometer "A de Casser...
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Warsaw Pact Frogman Sabotage Diver System, 19...
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Cased English Sextant by Blair, c. 1910...
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Two-Day Marine Chronometer by E. Dent & Co., ...
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Early Two-Day Marine Chronometer by W.L. Crai...
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19-inch Radius Mahogany Hadley's Quadrant or ...
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"Benz Patent-Motorwagen" of 1886 Model...
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"Radior" Original Poster, c. 1920...
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Italian "Cycles Orio e Marchand" Bicycle Post...
