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 |
| 5500975 | Toothbrush A toothbrush having two types of bristle end forms. Filaments, each having a tapered end and a ball-like end, are bundled, and folded in to a U-shape bend in a manner that the tapered end is projected from the ball end. The tapered end is inserted into a ... | 03/26/1996 |
