File:Vintage DeForest Audiphone Carbon Hearing Aid Ad From The Detroit Press, October 2, 1932 (14224377234).jpg
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[edit]DescriptionVintage DeForest Audiphone Carbon Hearing Aid Ad From The Detroit Press, October 2, 1932 (14224377234).jpg | Vintage DeForest Audiphone Carbon Hearing Aid Ad From The Detroit Press, October 2, 1932. The New York company that marketed these devices boasted that they were designed by Lee De Forest, however, De Forest's biographies says nothing about hearing aids. Perhaps he simply sold his endorsement to the highest bidder. It was Great Depression, he has just lost lawsuits on sound cinema patents... |
Date | |
Source | Vintage DeForest Audiphone Carbon Hearing Aid Ad From The Detroit Press, October 2, 1932 |
Author | Joe Haupt from USA |
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Public domainPublic domainfalsefalse This work is in the public domain in the United States because it was published in the United States between 1929 and 1977, inclusive, without a copyright notice. For further explanation, see Commons:Hirtle chart as well as a detailed definition of "publication" for public art.Note that it may still be copyrighted in jurisdictions that do not apply the rule of the shorter term for US works (depending on the date of the author's death), such as Canada (50 p.m.a.), Mainland China (50 p.m.a., not Hong Kong or Macao), Germany (70 p.m.a.), Mexico (100 p.m.a.), Switzerland (70 p.m.a.), and other countries with individual treaties.
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This image was originally posted to Flickr by France1978 at https://www.flickr.com/photos/51764518@N02/14224377234. It was reviewed on 22 September 2014 by FlickreviewR and was confirmed to be licensed under the terms of the cc-by-sa-2.0. |
22 September 2014
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current | 01:01, 22 September 2014 | 2,015 × 1,811 (964 KB) | Tm (talk | contribs) | Transferred from Flickr via Flickr2commons |
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