Soubor:Actor portraying Alexander Graham Bell in an AT&T promotional film (1926).jpg

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Fotografie + Deutsch: Ein Schauspieler porträtiert Alexander Graham Bell, wie er in ein frühes Modell seines Telefons spricht. Szene aus einem 1926 veröffentlichten Werbefilm der American Telephone & Telegraph Company (AT&T).

• English: An actor portraying Alexander Graham Bell speaking into a early model of the telephone for a 1926 promotional film by the American Telephone & Telegraph Company (AT&T): see 1926 recreation of Alexander Graham Bell inventing the telephone. AT&T Archives. Archived from the original on 22 June 2011. Retrieved on 22 June 2011.
• Date: 1926
• Source: Early Office Museum.
• Author: Unknown; film commissioned by AT&T.

+ pochází z Wikimedia Commons, kde má status – This work is in the public domain because it was published in the United States between 1923 and 1963 and although there may or may not have been a copyright notice, the copyright was not renewed. Unless its author has been dead for the required period, it is copyrighted in the countries or areas that do not apply the rule of the shorter term for US works, such as Canada (50 pma), Mainland China (50 pma, not Hong Kong or Macao), Germany (70 pma), Mexico (100 pma), Switzerland (70 pma), and other countries with individual treaties.

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