File:John G. Linvill (1974).jpg
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English: Dr. John Linvill, inventor of the Optacon reading device for the blind, in April 1974. Dr. Linvill was Chairman of the Department of Electrical Engineering at Stanford University. |
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| Author | Gotanero |
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I, the copyright holder of this work, hereby publish it under the following license:
This file is licensed under the Creative Commons Attribution-Share Alike 4.0 International license.
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 21:29, 1 May 2020 | | 760 × 1,015 (99 KB) | Laddo (talk | contribs) | File:John Linvill with daughter Candy demonstrating Optacon (April 1974).jpg cropped 78 % horizontally, 58 % vertically, rotated 4° using CropTool with precise mode. Crop for Wikidata. |
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