1.721 Imagens gratuitas de Inventor

Portrait of Jean-Joseph Merlin (1735-1803) from Belgium; mechanical engineer, inventor of the roller-skate and designer and maker of various musical instruments, clocks and other mechanical constructions, Thomas Gainsborough, 1781
Lonnie Johnson, Office of Naval Research
Portrait of Jean-Joseph Merlin (1735-1803) from Belgium; mechanical engineer, inventor of the roller-skate and designer and maker of various musical instruments, clocks and other mechanical constructions, Thomas Gainsborough, 1781
Submarine Torpedo Boat H.L. Hunley, Dec. 6, 1863, Conrad Wise Chapman, 1864
Lonnie Johnson, Office of Naval Research (crop)
Scientist-Inventor by Harold Mallette Dean - Coit Tower, San Francisco, CA - DSC04800
Submarine Torpedo Boat H.L. Hunley, Dec. 6, 1863, Conrad Wise Chapman, 1864
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