Key_duplicator,_1917.jpg(439 × 508 píxels, mida del fitxer: 26 Ko, tipus MIME: image/jpeg)

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Resum

Descripció A machine that is used to duplicate flat metal 20th-century keys.
Data 1917
Font Google Books - (1917). "Man And His Machines". The World's Work XXXIII. Garden City, New York: Doubleday, Page & Co..
Autor DesconegutUnknown author

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Public domain
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.

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Note: This tag should not be used for sound recordings.PD-1923Public domain in the United States//commons.wikimedia.org/wiki/File:Key_duplicator,_1917.jpg

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actual17:12, 12 ago 2008Miniatura per a la versió del 17:12, 12 ago 2008439 × 508 (26 Ko)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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