File:PSM V33 D312 Step 1 of antisiphoning waste water trap.jpg
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Date/Time | Thumbnail | Dimensions | User | Comment | |
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current | 01:39, 9 April 2015 | 808 × 578 (75 KB) | Ineuw | Cleaned image and improved contrast | |
04:48, 29 September 2010 | 853 × 566 (57 KB) | Ineuw | {{Information |Description = Step 1 of antisiphoning waste water trap |Source = http://en.wikisource.org/wiki/Page:Popular_Science_Monthly_Volume_33.djvu/312 |Date = 1887-1888 |Author = Unknown |Permission = {{PD-old}} |other_versions = }} [[Categ |
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