File:Waterwellswivelmach1.png
Waterwellswivelmach1.png (720 × 540 pixels, file size: 24 KB, MIME type: image/png)
rough diagram of power swivel idea mach1
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Date/Time | Thumbnail | Dimensions | User | Comment | |
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current | 05:55, 18 January 2011 | 720 × 540 (24 KB) | Dorkmo (talk | contribs) | updated simpler version | |
05:53, 18 January 2011 | 720 × 540 (21 KB) | Dorkmo (talk | contribs) | rough diagram of power swivel idea mach1 |
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