File:William Robinson (1840-1921).jpg

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William_Robinson_(1840-1921).jpg ‎(357 × 441 pixels, file size: 137 KB, MIME type: image/jpeg)

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current22:13, 11 November 2011Thumbnail for version as of 22:13, 11 November 2011357 × 441 (137 KB)commons>Caseyjonz== Summary == {{Information |Description={{en|1=Photograph of {{w|William Robinson (inventor)|William Robinson}} (1840-1921), American inventor and engineer. Invented the railroad {{track circuit}} in 1872.}} |Source=[http://www.archive.org/details/invent

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