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 |
| 4971805 | Slow-releasing granules and long acting mixed granules comprising the same Slow-releasing granules which are characterized by coating the quick-releasing granules which comprise an active ingredient, polyvinyl pyrrolidone polymer and a disintegrator where the polymer distributes in high concentration on the surface area of the g... | 11/20/1990 |
