File:PSM V20 D325 Mechanism of the pneumatic dial.jpg
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DescriptionPSM V20 D325 Mechanism of the pneumatic dial.jpg | Mechanism of the pneumatic dial | |||||
Date |
between 1881 and 1882 date QS:P,+1881-00-00T00:00:00Z/8,P1319,+1881-00-00T00:00:00Z/9,P1326,+1882-00-00T00:00:00Z/9 |
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Source | Popular Science Monthly Volume 20 | |||||
Author | Unknown authorUnknown author | |||||
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current | 23:07, 22 August 2010 | ![]() | 1,099 × 872 (125 KB) | Ineuw (talk | contribs) | {{Information |Description = Mechanism of the pneumatic dial |Source = http://en.wikisource.org/wiki/Page:Popular_Science_Monthly_Volume_20.djvu/325 |Date = 1881-1882 |Author = Unknown |Permission = {{PD-old}} |other_versions = }} [[Category:Popul |
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