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 |
| 7249681 | Media shelving A media shelving unit comprising a base for supporting a media storage case; a plurality of dividers extending upwardly from the base, the plurality of dividers defining at least two channels; wherein the channels are at different orientations with respect to each o... | 07/31/2007 |