File:3 view diagram of Sikorsky S-18 aircraft.jpg
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| Description |
English: 3 view diagram of Sikorsky S-18 aircraft |
| Date | |
| Source |
Original publication: Unknown |
| Author | Unknown author |
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This work is in the public domain in the United States because it was published (or registered with the U.S. Copyright Office) before January 1, 1929.
 Public domain works must be out of copyright in both the United States and in the source country of the work in order to be hosted on the Commons. If the work is not a U.S. work, the file must have an additional copyright tag indicating the copyright status in the source country.
Note: This tag should not be used for sound recordings. |
File history
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 14:09, 6 May 2017 | | 269 × 205 (11 KB) | Samf4u | {{subst:Upload marker added by en.wp UW}} {{Information |Description = {{en|3 view diagram of Sikorsky S-18 aircraft}} |Source = '''Original publication''': Unknown<br/> '''Immediate source''': http://ram-home.com/ram-old/s-18.html |Date = 1916 |Author... |
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