File:Mouse-patents-englebart-rid.png
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Date/Time | Dimensions | User | Comment | |
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current | 07:34, 13 January 2007 | 882 × 276 (40 KB) | Liftarn | {{Information |Description=Early mouse patents. (left to right) Opposing track wheels by ''Englebart'', 11/70, [http://www.freepatentsonline.com/image-3541541-1.html 3541541]. Ball and wheel by ''Rider'', 9/74, [http://www.freepatentsonline.com/3835464.ht |
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