File:Bells_Photophon_Schema.jpg
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Bells_Photophon_Schema.jpg (640 × 396 pixels, file size: 36 KB, MIME type: image/jpeg)
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Summary
DescriptionBells Photophon Schema.jpg |
English: Alexander Graham Bell's photophone -technical drawing by Bell |
Date | |
Source | http://de.wikipedia.org/wiki/Datei:Bells_Photophon_Schema.jpg |
Author | Meyers Konversationslexikon von 1888 |
Other versions | on German Wikipedia |
Licensing
Public domainPublic domainfalsefalse |
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This work is in the public domain in its country of origin and other countries and areas where the copyright term is the author's life plus 70 years or fewer.
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This file has been identified as being free of known restrictions under copyright law, including all related and neighboring rights. |
https://creativecommons.org/publicdomain/mark/1.0/PDMCreative Commons Public Domain Mark 1.0falsefalse
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1888
image/jpeg
3c94e5c9a758838b9132d6301370352e9239564d
37,269 byte
396 pixel
640 pixel
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Date/Time | Thumbnail | Dimensions | User | Comment | |
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current | 05:04, 6 August 2009 | ![]() | 640 × 396 (36 KB) | Harryzilber | {{Information |Description={{en|1=Alexander Graham Bell's photophone -technical drawing by Bell}} |Source=http://de.wikipedia.org/wiki/Datei:Bells_Photophon_Schema.jpg |Author=Meyers Konversationslexikon von 1888 |Date=1888 |Permission= |other_versions=on |
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