File:Key duplicator, 1917.jpg
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Summary
| Description | A machine that is used to duplicate flat metal 20th-century keys. |
| Date | 1917 |
| Source | Google Books - (1917). "Man And His Machines". The World's Work XXXIII. Garden City, New York: Doubleday, Page & Co.. |
| Author | Unknown author |
Licensing
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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 | 15:12, 12 August 2008 | | 439 × 508 (26 KB) | Struthious Bandersnatch | {{Information |Description=1917 photograph of a machine that is used to duplicate flat metal 20th-century keys. |Source=Google Books - {{cite journal | title = Man And His Machines | journal = The World's Work | publisher = Doubleday, Pa |
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