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Date/Time | Thumbnail | Dimensions | User | Comment | |
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current | 09:28, 18 October 2009 | 1,557 × 339 (128 KB) | Petteri Aimonen | {{Information |Description={{en|1=The helical rotor of a progressive cavity pump, and the two universal joints in the drive mechanism.}} |Source={{own}} |Author=Petteri Aimonen |Date=2009-10-18 |Permission= |other_versions= }} [[ |
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