File:Sun catcher tracking system.gif
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Size of this preview: 408 × 599 pixels. Other resolution: 545 × 800 pixels.
Original file (545 × 800 pixels, file size: 21 KB, MIME type: image/gif)
Drawing from Leifur Thor's patent with the USPTO #5,980,052
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 17:17, 12 August 2011 | | 545 × 800 (21 KB) | Leifthor (talk | contribs) | Drawing from Leifur Thor's patent with the USPTO #5,980,052 |
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