Celebrity Inventors
Mark Twain (Samuel L. Clemens) received Patent No. 121,992 for "An Improvement in Adjustable and Detachable Straps for Garments." He later received two more patents: one for a self-pasting scrapbook and one for a game to help players remember important historical dates.
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| Number | Title | Issue Date |
| 7580791 | Route evaluation system A route evaluation system includes a processor, a computer readable memory and a database that stores roadway data pertaining to a route. A first routine is arranged to obtain selected roadway data from the database. A second routine is arranged to determine a route... | 08/25/2009 |
