File:USPTO Telephone Patent No. 174465.jpg
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current | 19:58, 8 May 2012 | ![]() | 415 × 622 (241 KB) | Harryzilber | Uploaded a higher resolution image of the same document; located via TinEye. |
15:56, 2 December 2010 | ![]() | 415 × 622 (241 KB) | Harryzilber | ((Information |Description=((en|1=An image of the master telephone patent awarded to Alexander Graham Bell. The patent was arguably the most valuable one every awarded in history.)) |Source=Image provided from this historical |
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