File:Hall-Braille writer (Martin Howard Collection).jpg
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Summary
| Description |
English: The Hall Braille-writer was invented by Frank H. Hall, superintendent of the Illinois Institution for the Education of the Blind. It was the first successful and widely used mechanical Braille-writer. |
| Date | |
| Source | Own work |
| Author | Martin Howard |
Licensing
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File history
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 22:51, 26 March 2024 | | 1,500 × 1,239 (398 KB) | Martin Howard | Uploaded while editing "Frank Haven Hall" on en.wikipedia.org |
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