Image: TelephonePatentDrawingBell

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Description: Alexander Graham Bell's Telephone Patent Drawing, 03/07/1876. Bell's telephone was the first apparatus to transmit human speech via machine. His work culminated in one of the most profitable and contested of all 19th-century patents. From the National Archives.
Title: TelephonePatentDrawingBell
Credit: This media is available in the holdings of the National Archives and Records Administration, cataloged under the National Archives Identifier (NAID) 302052. This tag does not indicate the copyright status of the attached work. A normal copyright tag is still required. See Commons:Licensing for more information. English | Español | Français | Italiano | Македонски | മലയാളം | Nederlands | Polski | Português | Русский | Slovenščina | Türkçe | Українська | Tiếng Việt | 中文（简体） | 中文（繁體） | +/−
Author: Alexander Graham Bell
Usage Terms: Public domain
License: Public domain
Attribution Required?: No

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Alexander Graham Bell

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