Abraham Lincoln's U.S. Patent : 無料・フリー素材/写真
Abraham Lincoln's U.S. Patent / treasuresthouhast
| ライセンス | クリエイティブ・コモンズ 表示 2.1 |
|---|---|
| 説明 | A. Lincoln, "An Improved Method of Buoying Vessels Over Shoals", Patented May 22nd 1849. You can view a copy of Abraham Lincoln's patent on the U.S. Patent and Trademark Office website. Go to the patent search page at patft.uspto.gov/netahtml/PTO/srchnum.htmand enter patent 6469. More information at Abraham Lincoln Online at showcase.netins.net/web/creative/lincoln/education/patent... |
| 撮影日 | 2006-06-23 13:02:56 |
| 撮影者 | treasuresthouhast , Alexandria, Virginia, USA |
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| カメラ | Canon PowerShot S2 IS , Canon |
| 露出 | 0.017 sec (1/60) |
| 開放F値 | f/3.5 |
| 焦点距離 | 11520 dpi |