File:Optical Recording 1880 Photophone Receiver.jpg
From ETHW
Optical_Recording_1880_Photophone_Receiver.jpg (392 × 599 pixels, file size: 79 KB, MIME type: image/jpeg)
File history
Click on a date/time to view the file as it appeared at that time.
Date/Time | Thumbnail | Dimensions | User | Comment | |
---|---|---|---|---|---|
current | 21:39, 18 September 2012 | 392 × 599 (79 KB) | Beichner (talk | contribs) |
You cannot overwrite this file.
File usage
The following page uses this file: