File:Bell's drawing for Patent 161739 granted by U.S. PTO in April 1875.jpg
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Summary[edit]
| Description |
English: Bell's drawing for his application for a patent for a primitive fax machine (which he called the "autograph telegraph") showed multiple liquid transmitters. |
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| Source | Library of Congress | ||||||||||||||||||||
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This work is in the public domain in its country of origin and other countries and areas where the copyright term is the author's life plus 70 years or fewer. This work is in the public domain in the United States because it was published (or registered with the U.S. Copyright Office) before January 1, 1928. |
| This file has been identified as being free of known restrictions under copyright law, including all related and neighboring rights. | |
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 17:28, 22 November 2014 | | 1,467 × 469 (49 KB) | Heritager (talk | contribs) | User created page with UploadWizard |
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