Did You Know...
...that "patent leather" got its name because the process of applying the polished black finish to leather was once patented?
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| Number | Title | Issue Date |
| 7542570 | Information encryption transmission/reception method An information encrypting transmission and reception method in an information transmission and reception network composed of a plurality of senders and receivers having computers being connected and communicating each other via a web network and a data center having... | 06/02/2009 |
