File:PSM V23 D635 Reinforced concrete beam supporting floor.jpg
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![File:PSM V23 D635 Reinforced concrete beam supporting floor.jpg](http://upload.wikimedia.org/wikipedia/commons/thumb/e/e3/PSM_V23_D635_Reinforced_concrete_beam_supporting_floor.jpg/705px-PSM_V23_D635_Reinforced_concrete_beam_supporting_floor.jpg)
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Date/Time | Thumbnail | Dimensions | User | Comment | |
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current | 00:31, 26 February 2011 | ![]() | 1,691 × 1,438 (494 KB) | Ineuw | {{Information |Description = Reinforced concrete beam supporting floor |Source = http://en.wikisource.org/wiki/Page:Popular_Science_Monthly_Volume_23.djvu/635 |Date = 1883 |Author = Unknown |Permission = {{PD-old}} |other_versions = }} [[Category: |
16:13, 30 August 2010 | ![]() | 1,700 × 1,433 (159 KB) | Ineuw | {{Information |Description = Reinforced concrete beam supporting floor |Source = http://en.wikisource.org/wiki/Page:Popular_Science_Monthly_Volume_23.djvu/635 |Date = 1883 |Author = Unknown |Permission = {{PD-old}} |other_versions = }} [[Category: |
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