Changes related to "Category:Geometrical optics"
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21 July 2014
19 July 2014
- (diff | hist) . . m Lens (optics); 09:20 . . (+1) . . Johnuniq (Reverted edits by 220.127.116.11 (talk) to last version by TowerOfBricks)
- (diff | hist) . . Lens (optics); 08:07 . . (-1) . . 18.104.22.168