File:Pulsometer (Heat Engines, 1913).jpg
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Pulsometer_(Heat_Engines,_1913).jpg (324 × 599 pixels, file size: 106 KB, MIME type: image/jpeg)
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Date/Time | Thumbnail | Dimensions | User | Comment | |
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current | 22:10, 26 September 2009 | ![]() | 324 × 599 (106 KB) | commons>DrJunge | noise reduction, cleaned background |
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