File:Janney coupler drawing.png
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Date/Time | Thumbnail | Dimensions | User | Comment | |
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current | 21:13, 27 September 2015 | 1,450 × 754 (14 KB) | commons>Mikhail Ryazanov | {{Information |Description = {{en|1= Diagram of a knuckle Janney coupler }} |Source = {{US patent|138,405}} |Date = 1873-04-01 |Author = Eli H. Jaiwey |Permission = {{PD-US}} |other_versions= }} Category:Knuckle coupler |
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