File:EdwinHowardArmstrong.jpg
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[edit]DescriptionEdwinHowardArmstrong.jpg |
English: Edwin Armstrong, FM radio inventor |
Date |
circa 1954 date QS:P,+1954-00-00T00:00:00Z/9,P1480,Q5727902 |
Source | http://www.photolib.noaa.gov/htmls/pers0077.htm |
Author | Unknown authorUnknown author |
Licensing
[edit]Public domainPublic domainfalsefalse |
This image is in the public domain because it contains materials that originally came from the U.S. National Oceanic and Atmospheric Administration, taken or made as part of an employee's official duties.
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Date/Time | Thumbnail | Dimensions | User | Comment | |
---|---|---|---|---|---|
current | 06:59, 1 April 2020 | 1,064 × 1,404 (768 KB) | Opencooper (talk | contribs) | Crop and grayscale | |
17:33, 6 October 2016 | 1,064 × 1,544 (1.2 MB) | Clpo13 (talk | contribs) | higher resolution from source site | ||
19:42, 6 July 2006 | 700 × 1,015 (340 KB) | Chico (talk | contribs) | '''Edwin Armstron''', FM radio inventor http://de.wikipedia.org/wiki/Bild:EdwinHowardArmstrong.jpg http://en.wikipedia.org/wiki/Image:EdwinHowardArmstrong.jpg {{PD}} category:Inventors |
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