File:Key duplicator, 1917.jpg
冇更高解像度嘅圖像。
Key_duplicator,_1917.jpg （439 × 508 像素，檔案大細：26 KB ，MIME類型：image/jpeg）
摘要
| 描述 | A machine that is used to duplicate flat metal 20th-century keys. |
| 日期 | 1917 |
| 來源 | Google Books - (1917). "Man And His Machines". The World's Work XXXIII. Garden City, New York: Doubleday, Page & Co.. |
| 作者 | Unknown author |
協議
|
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. |
檔案歷史
撳個日期／時間去睇響嗰個時間出現過嘅檔案。
| 日期／時間 | 縮圖 | 尺寸 | 用戶 | 註解 | |
|---|---|---|---|---|---|
| 現時 | 2008年8月12號 (二) 15:12 | | 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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