File:Babbage sign language.jpg
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Babbage_sign_language.jpg (384 × 451 pixels, file size: 77 KB, MIME type: image/jpeg)
Summary
<a href="https://en.wikipedia.org/wiki/Charles_Babbage" class="extiw" title="w:Charles Babbage">w:Charles Babbage</a>, description of a sign language for mechanical components. From On a method of expressing by signs the action of machinery (1827),
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 17:44, 8 January 2017 | | 384 × 451 (77 KB) | 127.0.0.1 (talk) | <a href="https://en.wikipedia.org/wiki/Charles_Babbage" class="extiw" title="w:Charles Babbage">w:Charles Babbage</a>, description of a sign language for mechanical components. From <i>On a method of expressing by signs the action of machinery</i> (1827), |
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