Pterotype.jpg (410 × 504 pixels, file size: 51 KB, MIME type: image/jpeg)
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current | 15:02, 11 January 2008 | 410 × 504 (51 KB) | Chetvorno | {{Information |Description=Early prototype typewriter, the 'Pterotype', built by John Pratt, an American living in England, |Source=Downloaded 2008-1-11 from [http://www.earlyofficemuseum.com/centennial%20exposition.htm ''Office equipment and supplies at |
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